523742180 has 24 divisors (see below), whose sum is σ = 1184463672. Its totient is φ = 193381632.

The previous prime is 523742173. The next prime is 523742183. The reversal of 523742180 is 81247325.

It can be written as a sum of positive squares in 4 ways, for example, as 52678564 + 471063616 = 7258^2 + 21704^2 .

It is a super-2 number, since 2×523742180² = 548611742222304800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (523742183) 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, 1006937 + ... + 1007456.

It is an arithmetic number, because the mean of its divisors is an integer number (49352653).

Almost surely, 2^523742180 is an apocalyptic number.

It is an amenable number.

523742180 is an abundant number, since it is smaller than the sum of its proper divisors (660721492).

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

523742180 is a wasteful number, since it uses less digits than its factorization.

523742180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014415 (or 2014413 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 523742180 is about 22885.4141321498. The cubic root of 523742180 is about 806.0695529508.

The spelling of 523742180 in words is "five hundred twenty-three million, seven hundred forty-two thousand, one hundred eighty".