478132831 has 24 divisors (see below), whose sum is σ = 550141200. Its totient is φ = 414691200.

The previous prime is 478132819. The next prime is 478132847. The reversal of 478132831 is 138231874.

It is not a de Polignac number, because 478132831 - 2¹³ = 478124639 is a prime.

It is a super-2 number, since 2×478132831² = 457222008160149122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478132801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 311536 + ... + 313066.

It is an arithmetic number, because the mean of its divisors is an integer number (22922550).

Almost surely, 2^478132831 is an apocalyptic number.

478132831 is a deficient number, since it is larger than the sum of its proper divisors (72008369).

478132831 is a wasteful number, since it uses less digits than its factorization.

478132831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671 (or 1660 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 478132831 is about 21866.2486723260. The cubic root of 478132831 is about 781.9569701578.

The spelling of 478132831 in words is "four hundred seventy-eight million, one hundred thirty-two thousand, eight hundred thirty-one".