455254640 has 40 divisors (see below), whose sum is σ = 1104491808. Its totient is φ = 174183680.

The previous prime is 455254633. The next prime is 455254661. The reversal of 455254640 is 46452554.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 455254640.

It is a congruent 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, 121871 + ... + 125550.

Almost surely, 2^455254640 is an apocalyptic number.

455254640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

455254640 is an abundant number, since it is smaller than the sum of its proper divisors (649237168).

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

455254640 is a wasteful number, since it uses less digits than its factorization.

455254640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247457 (or 247451 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 35.

The square root of 455254640 is about 21336.6970264847. The cubic root of 455254640 is about 769.2806234560.

The spelling of 455254640 in words is "four hundred fifty-five million, two hundred fifty-four thousand, six hundred forty".