523053240 has 32 divisors (see below), whose sum is σ = 1569160080. Its totient is φ = 139480832.

The previous prime is 523053227. The next prime is 523053241. The reversal of 523053240 is 42350325.

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 523053240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523053241) 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, 2179269 + ... + 2179508.

Almost surely, 2^523053240 is an apocalyptic number.

It is an amenable number.

523053240 is an abundant number, since it is smaller than the sum of its proper divisors (1046106840).

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

523053240 is a wasteful number, since it uses less digits than its factorization.

523053240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4358791 (or 4358787 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 523053240 is about 22870.3572337644. The cubic root of 523053240 is about 805.7159583415.

The spelling of 523053240 in words is "five hundred twenty-three million, fifty-three thousand, two hundred forty".