454863978 has 16 divisors (see below), whose sum is σ = 1010808960. Its totient is φ = 151621308.

The previous prime is 454863953. The next prime is 454864001. The reversal of 454863978 is 879368454.

454863978 is a `hidden beast` number, since 4 + 548 + 6 + 3 + 97 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 8423407 = 454863978 / (4 + 5 + 4 + 8 + 6 + 3 + 9 + 7 + 8).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4211650 + ... + 4211757.

It is an arithmetic number, because the mean of its divisors is an integer number (63175560).

Almost surely, 2^454863978 is an apocalyptic number.

454863978 is an abundant number, since it is smaller than the sum of its proper divisors (555944982).

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

454863978 is a wasteful number, since it uses less digits than its factorization.

454863978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8423418 (or 8423412 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 454863978 is about 21327.5403645146. The cubic root of 454863978 is about 769.0605160813.

The spelling of 454863978 in words is "four hundred fifty-four million, eight hundred sixty-three thousand, nine hundred seventy-eight".