520526040 has 32 divisors (see below), whose sum is σ = 1561578480. Its totient is φ = 138806912.

The previous prime is 520526021. The next prime is 520526047. The reversal of 520526040 is 40625025.

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

It is a self number, because there is not a number n which added to its sum of digits gives 520526040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520526047) 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, 2168739 + ... + 2168978.

Almost surely, 2^520526040 is an apocalyptic number.

It is an amenable number.

520526040 is an abundant number, since it is smaller than the sum of its proper divisors (1041052440).

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

520526040 is a wasteful number, since it uses less digits than its factorization.

520526040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337731 (or 4337727 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 520526040 is about 22815.0397764282. The cubic root of 520526040 is about 804.4162222010.

The spelling of 520526040 in words is "five hundred twenty million, five hundred twenty-six thousand, forty".