474809978 has 4 divisors (see below), whose sum is σ = 712214970. Its totient is φ = 237404988.

The previous prime is 474809939. The next prime is 474810023. The reversal of 474809978 is 879908474.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 443818489 + 30991489 = 21067^2 + 5567^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118702493 + ... + 118702496.

Almost surely, 2^474809978 is an apocalyptic number.

474809978 is a deficient number, since it is larger than the sum of its proper divisors (237404992).

474809978 is a wasteful number, since it uses less digits than its factorization.

474809978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237404991.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The square root of 474809978 is about 21790.1348779671. The cubic root of 474809978 is about 780.1413167140.

The spelling of 474809978 in words is "four hundred seventy-four million, eight hundred nine thousand, nine hundred seventy-eight".