531322416 has 60 divisors (see below), whose sum is σ = 1542048872. Its totient is φ = 177106176.

The previous prime is 531322399. The next prime is 531322417. The reversal of 531322416 is 614223135.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 531322416.

It is not an unprimeable number, because it can be changed into a prime (531322417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64441 + ... + 72216.

Almost surely, 2^531322416 is an apocalyptic number.

It is an amenable number.

531322416 is an abundant number, since it is smaller than the sum of its proper divisors (1010726456).

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

531322416 is a wasteful number, since it uses less digits than its factorization.

531322416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136680 (or 136662 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 531322416 is about 23050.4320133051. The cubic root of 531322416 is about 809.9397486048.

The spelling of 531322416 in words is "five hundred thirty-one million, three hundred twenty-two thousand, four hundred sixteen".