1243630430460 has 288 divisors, whose sum is σ = 4257806192640. Its totient is φ = 291089894400.

The previous prime is 1243630430423. The next prime is 1243630430467. The reversal of 1243630430460 is 640340363421.

1243630430460 is a `hidden beast` number, since 1 + 2 + 43 + 6 + 304 + 304 + 6 + 0 = 666.

It is a super-2 number, since 2×1243630430460² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243630430467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26922744 + ... + 26968896.

It is an arithmetic number, because the mean of its divisors is an integer number (14784049280).

Almost surely, 2^{1243630430460} is an apocalyptic number.

1243630430460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1243630430460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2128903096320).

1243630430460 is an abundant number, since it is smaller than the sum of its proper divisors (3014175762180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243630430460 is a wasteful number, since it uses less digits than its factorization.

1243630430460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46649 (or 46644 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

Adding to 1243630430460 its reverse (640340363421), we get a palindrome (1883970793881).

The spelling of 1243630430460 in words is "one trillion, two hundred forty-three billion, six hundred thirty million, four hundred thirty thousand, four hundred sixty".