455454640 has 40 divisors (see below), whose sum is σ = 1061525808. Its totient is φ = 181735680.

The previous prime is 455454613. The next prime is 455454641. The reversal of 455454640 is 46454554.

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 455454640.

It is not an unprimeable number, because it can be changed into a prime (455454641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26919 + ... + 40441.

Almost surely, 2^455454640 is an apocalyptic number.

455454640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

455454640 is an abundant number, since it is smaller than the sum of its proper divisors (606071168).

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

455454640 is a wasteful number, since it uses less digits than its factorization.

455454640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13957 (or 13951 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 37.

The square root of 455454640 is about 21341.3832728809. The cubic root of 455454640 is about 769.3932590276.

The spelling of 455454640 in words is "four hundred fifty-five million, four hundred fifty-four thousand, six hundred forty".