531492864 has 208 divisors, whose sum is σ = 1673323008. Its totient is φ = 146866176.

The previous prime is 531492859. The next prime is 531492883. The reversal of 531492864 is 468294135.

It is a Harshad number since it is a multiple of its sum of digits (42).

Its product of digits (207360) is a multiple of the sum of its prime divisors (216).

It is a congruent number.

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, 3182509 + ... + 3182675.

Almost surely, 2^531492864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 531492864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (836661504).

531492864 is an abundant number, since it is smaller than the sum of its proper divisors (1141830144).

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

531492864 is a wasteful number, since it uses less digits than its factorization.

531492864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 216 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 531492864 is about 23054.1290011139. The cubic root of 531492864 is about 810.0263487847.

The spelling of 531492864 in words is "five hundred thirty-one million, four hundred ninety-two thousand, eight hundred sixty-four".