478131922 has 32 divisors (see below), whose sum is σ = 767289600. Its totient is φ = 222814800.

The previous prime is 478131917. The next prime is 478131947. The reversal of 478131922 is 229131874.

It is a super-2 number, since 2×478131922² = 457220269670828168, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691597 + ... + 692287.

It is an arithmetic number, because the mean of its divisors is an integer number (23977800).

Almost surely, 2^478131922 is an apocalyptic number.

478131922 is a deficient number, since it is larger than the sum of its proper divisors (289157678).

478131922 is a wasteful number, since it uses less digits than its factorization.

478131922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982.

The product of its digits is 24192, while the sum is 37.

The square root of 478131922 is about 21866.2278868579. The cubic root of 478131922 is about 781.9564746195.

The spelling of 478131922 in words is "four hundred seventy-eight million, one hundred thirty-one thousand, nine hundred twenty-two".