240412040520 has 64 divisors (see below), whose sum is σ = 722653272000. Its totient is φ = 63983908608.

The previous prime is 240412040509. The next prime is 240412040579. The reversal of 240412040520 is 25040214042.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1906930 + ... + 2029089.

It is an arithmetic number, because the mean of its divisors is an integer number (11291457375).

Almost surely, 2^240412040520 is an apocalyptic number.

240412040520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240412040520 is an abundant number, since it is smaller than the sum of its proper divisors (482241231480).

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

240412040520 is a wasteful number, since it uses less digits than its factorization.

240412040520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936542 (or 3936538 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 240412040520 its reverse (25040214042), we get a palindrome (265452254562).

The spelling of 240412040520 in words is "two hundred forty billion, four hundred twelve million, forty thousand, five hundred twenty".