524081640 has 64 divisors (see below), whose sum is σ = 1574049600. Its totient is φ = 139594752.

The previous prime is 524081587. The next prime is 524081669. The reversal of 524081640 is 46180425.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 524081598 and 524081607.

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, 132816 + ... + 136704.

It is an arithmetic number, because the mean of its divisors is an integer number (24594525).

Almost surely, 2^524081640 is an apocalyptic number.

It is an amenable number.

524081640 is an abundant number, since it is smaller than the sum of its proper divisors (1049967960).

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

524081640 is a wasteful number, since it uses less digits than its factorization.

524081640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5026 (or 5022 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 524081640 is about 22892.8294450468. The cubic root of 524081640 is about 806.2436648742.

The spelling of 524081640 in words is "five hundred twenty-four million, eighty-one thousand, six hundred forty".