454020856 has 16 divisors (see below), whose sum is σ = 859719240. Its totient is φ = 224762400.

The previous prime is 454020829. The next prime is 454020857. The reversal of 454020856 is 658020454.

It is a super-2 number, since 2×454020856² = 412269875365945472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454020857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280146 + ... + 281761.

Almost surely, 2^454020856 is an apocalyptic number.

It is an amenable number.

454020856 is a deficient number, since it is larger than the sum of its proper divisors (405698384).

454020856 is a wasteful number, since it uses less digits than its factorization.

454020856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562014 (or 562010 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 454020856 is about 21307.7651573317. The cubic root of 454020856 is about 768.5850531515.

The spelling of 454020856 in words is "four hundred fifty-four million, twenty thousand, eight hundred fifty-six".