408270978 has 24 divisors (see below), whose sum is σ = 901279548. Its totient is φ = 133522272.

The previous prime is 408270949. The next prime is 408270979. The reversal of 408270978 is 879072804.

It can be written as a sum of positive squares in 2 ways, for example, as 381303729 + 26967249 = 19527^2 + 5193^2 .

It is not an unprimeable number, because it can be changed into a prime (408270979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213025 + ... + 214932.

Almost surely, 2^408270978 is an apocalyptic number.

408270978 is an abundant number, since it is smaller than the sum of its proper divisors (493008570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

408270978 is a wasteful number, since it uses less digits than its factorization.

408270978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428018 (or 428015 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 408270978 is about 20205.7164683661. The cubic root of 408270978 is about 741.8501173322.

The spelling of 408270978 in words is "four hundred eight million, two hundred seventy thousand, nine hundred seventy-eight".