1240572536 has 32 divisors (see below), whose sum is σ = 2698055040. Its totient is φ = 523736928.

The previous prime is 1240572533. The next prime is 1240572559. The reversal of 1240572536 is 6352750421.

It is a junction number, because it is equal to n+sod(n) for n = 1240572496 and 1240572505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240572533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161570 + ... + 169073.

It is an arithmetic number, because the mean of its divisors is an integer number (84314220).

Almost surely, 2^1240572536 is an apocalyptic number.

It is an amenable number.

1240572536 is an abundant number, since it is smaller than the sum of its proper divisors (1457482504).

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

1240572536 is a wasteful number, since it uses less digits than its factorization.

1240572536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330723 (or 330719 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 1240572536 is about 35221.7622500635. The cubic root of 1240572536 is about 1074.5023941087.

The spelling of 1240572536 in words is "one billion, two hundred forty million, five hundred seventy-two thousand, five hundred thirty-six".