1243116630 has 96 divisors (see below), whose sum is σ = 3772514304. Its totient is φ = 278088768.

The previous prime is 1243116599. The next prime is 1243116631. The reversal of 1243116630 is 366113421.

1243116630 is a `hidden beast` number, since 1 + 24 + 3 + 1 + 1 + 6 + 630 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1243116594 and 1243116603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243116631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8619 + ... + 50601.

It is an arithmetic number, because the mean of its divisors is an integer number (39297024).

Almost surely, 2^1243116630 is an apocalyptic number.

1243116630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1243116630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1886257152).

1243116630 is an abundant number, since it is smaller than the sum of its proper divisors (2529397674).

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

1243116630 is a wasteful number, since it uses less digits than its factorization.

1243116630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42050 (or 42047 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1243116630 is about 35257.8591238890. The cubic root of 1243116630 is about 1075.2364015880.

The spelling of 1243116630 in words is "one billion, two hundred forty-three million, one hundred sixteen thousand, six hundred thirty".