531616390 has 32 divisors (see below), whose sum is σ = 1011870720. Its totient is φ = 200535264.

The previous prime is 531616369. The next prime is 531616433. The reversal of 531616390 is 93616135.

It is a super-2 number, since 2×531616390² = 565231972233264200, which contains 22 as substring.

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, 36097 + ... + 48643.

It is an arithmetic number, because the mean of its divisors is an integer number (31620960).

Almost surely, 2^531616390 is an apocalyptic number.

531616390 is a deficient number, since it is larger than the sum of its proper divisors (480254330).

531616390 is a wasteful number, since it uses less digits than its factorization.

531616390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12796.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 531616390 is about 23056.8078883440. The cubic root of 531616390 is about 810.0890975507.

The spelling of 531616390 in words is "five hundred thirty-one million, six hundred sixteen thousand, three hundred ninety".