523240872 has 64 divisors (see below), whose sum is σ = 1630886400. Its totient is φ = 135906240.

The previous prime is 523240853. The next prime is 523240873. The reversal of 523240872 is 278042325.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (523240873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139722 + ... + 143417.

It is an arithmetic number, because the mean of its divisors is an integer number (25482600).

Almost surely, 2^523240872 is an apocalyptic number.

It is an amenable number.

523240872 is an abundant number, since it is smaller than the sum of its proper divisors (1107645528).

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

523240872 is a wasteful number, since it uses less digits than its factorization.

523240872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283166 (or 283162 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 523240872 is about 22874.4589444210. The cubic root of 523240872 is about 805.8122901689.

The spelling of 523240872 in words is "five hundred twenty-three million, two hundred forty thousand, eight hundred seventy-two".