1242366460 has 48 divisors (see below), whose sum is σ = 2774780064. Its totient is φ = 465625088.

The previous prime is 1242366439. The next prime is 1242366491. The reversal of 1242366460 is 646632421.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 69132 + ... + 85228.

It is an arithmetic number, because the mean of its divisors is an integer number (57807918).

Almost surely, 2^1242366460 is an apocalyptic number.

1242366460 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 1242366460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1387390032).

1242366460 is an abundant number, since it is smaller than the sum of its proper divisors (1532413604).

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

1242366460 is a wasteful number, since it uses less digits than its factorization.

1242366460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16350 (or 16348 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 1242366460 is about 35247.2191810929. The cubic root of 1242366460 is about 1075.0200710152.

Adding to 1242366460 its reverse (646632421), we get a palindrome (1888998881).

The spelling of 1242366460 in words is "one billion, two hundred forty-two million, three hundred sixty-six thousand, four hundred sixty".