472440931 has 4 divisors (see below), whose sum is σ = 500231592. Its totient is φ = 444650272.

The previous prime is 472440923. The next prime is 472440937. The reversal of 472440931 is 139044274.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 139044274 = 2 ⋅69522137.

It is a cyclic number.

It is not a de Polignac number, because 472440931 - 2³ = 472440923 is a prime.

It is a super-2 number, since 2×472440931² = 446400866568293522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472440937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13895305 + ... + 13895338.

It is an arithmetic number, because the mean of its divisors is an integer number (125057898).

Almost surely, 2^472440931 is an apocalyptic number.

472440931 is a deficient number, since it is larger than the sum of its proper divisors (27790661).

472440931 is a wasteful number, since it uses less digits than its factorization.

472440931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27790660.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 472440931 is about 21735.7063607328. The cubic root of 472440931 is about 778.8416572654.

The spelling of 472440931 in words is "four hundred seventy-two million, four hundred forty thousand, nine hundred thirty-one".