531464736 has 96 divisors (see below), whose sum is σ = 1526611968. Its totient is φ = 160554240.

The previous prime is 531464729. The next prime is 531464737. The reversal of 531464736 is 637464135.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×531464736² = 564909531223099392, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 531464694 and 531464703.

It is not an unprimeable number, because it can be changed into a prime (531464737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488385 + ... + 489471.

It is an arithmetic number, because the mean of its divisors is an integer number (15902208).

Almost surely, 2^531464736 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 531464736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (763305984).

531464736 is an abundant number, since it is smaller than the sum of its proper divisors (995147232).

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

531464736 is a wasteful number, since it uses less digits than its factorization.

531464736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574 (or 1566 counting only the distinct ones).

The product of its digits is 181440, while the sum is 39.

The square root of 531464736 is about 23053.5189504770. The cubic root of 531464736 is about 810.0120589578.

The spelling of 531464736 in words is "five hundred thirty-one million, four hundred sixty-four thousand, seven hundred thirty-six".