472256978 has 4 divisors (see below), whose sum is σ = 708385470. Its totient is φ = 236128488.

The previous prime is 472256959. The next prime is 472257017. The reversal of 472256978 is 879652274.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 879652274 = 2 ⋅439826137.

It can be written as a sum of positive squares in only one way, i.e., 447026449 + 25230529 = 21143^2 + 5023^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118064243 + ... + 118064246.

Almost surely, 2^472256978 is an apocalyptic number.

472256978 is a deficient number, since it is larger than the sum of its proper divisors (236128492).

472256978 is a wasteful number, since it uses less digits than its factorization.

472256978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236128491.

The product of its digits is 1693440, while the sum is 50.

The square root of 472256978 is about 21731.4743632364. The cubic root of 472256978 is about 778.7405590124.

The spelling of 472256978 in words is "four hundred seventy-two million, two hundred fifty-six thousand, nine hundred seventy-eight".