531401772 has 48 divisors (see below), whose sum is σ = 1371734784. Its totient is φ = 158760000.

The previous prime is 531401753. The next prime is 531401789. The reversal of 531401772 is 277104135.

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, 18979 + ... + 37722.

It is an arithmetic number, because the mean of its divisors is an integer number (28577808).

Almost surely, 2^531401772 is an apocalyptic number.

It is an amenable number.

531401772 is an abundant number, since it is smaller than the sum of its proper divisors (840333012).

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

531401772 is a wasteful number, since it uses less digits than its factorization.

531401772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56790 (or 56788 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 531401772 is about 23052.1533050602. The cubic root of 531401772 is about 809.9800696209.

The spelling of 531401772 in words is "five hundred thirty-one million, four hundred one thousand, seven hundred seventy-two".