455240644 has 12 divisors (see below), whose sum is σ = 802945024. Its totient is φ = 225827784.

The previous prime is 455240593. The next prime is 455240683. The reversal of 455240644 is 446042554.

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, 447564 + ... + 448579.

Almost surely, 2^455240644 is an apocalyptic number.

It is an amenable number.

455240644 is a deficient number, since it is larger than the sum of its proper divisors (347704380).

455240644 is a wasteful number, since it uses less digits than its factorization.

455240644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896274 (or 896272 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

The square root of 455240644 is about 21336.3690444274. The cubic root of 455240644 is about 769.2727399838.

The spelling of 455240644 in words is "four hundred fifty-five million, two hundred forty thousand, six hundred forty-four".