455920978 has 8 divisors (see below), whose sum is σ = 684072972. Its totient is φ = 227896656.

The previous prime is 455920967. The next prime is 455921027. The reversal of 455920978 is 879029554.

It can be written as a sum of positive squares in 2 ways, for example, as 443649969 + 12271009 = 21063^2 + 3503^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22425 + ... + 37612.

Almost surely, 2^455920978 is an apocalyptic number.

455920978 is a deficient number, since it is larger than the sum of its proper divisors (228151994).

455920978 is a wasteful number, since it uses less digits than its factorization.

455920978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63836.

The product of its (nonzero) digits is 907200, while the sum is 49.

The square root of 455920978 is about 21352.3061517954. The cubic root of 455920978 is about 769.6557622458.

The spelling of 455920978 in words is "four hundred fifty-five million, nine hundred twenty thousand, nine hundred seventy-eight".