523694020 has 24 divisors (see below), whose sum is σ = 1100190168. Its totient is φ = 209395200.

The previous prime is 523694011. The next prime is 523694023. The reversal of 523694020 is 20496325.

It can be written as a sum of positive squares in 4 ways, for example, as 28987456 + 494706564 = 5384^2 + 22242^2 .

It is not an unprimeable number, because it can be changed into a prime (523694023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88350 + ... + 94090.

It is an arithmetic number, because the mean of its divisors is an integer number (45841257).

Almost surely, 2^523694020 is an apocalyptic number.

It is an amenable number.

523694020 is an abundant number, since it is smaller than the sum of its proper divisors (576496148).

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

523694020 is a wasteful number, since it uses less digits than its factorization.

523694020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10311 (or 10309 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 523694020 is about 22884.3619093913. The cubic root of 523694020 is about 806.0448451836.

The spelling of 523694020 in words is "five hundred twenty-three million, six hundred ninety-four thousand, twenty".