455439915 has 40 divisors (see below), whose sum is σ = 933055200. Its totient is φ = 208199808.

The previous prime is 455439889. The next prime is 455439947. The reversal of 455439915 is 519934554.

455439915 is a `hidden beast` number, since 4 + 5 + 543 + 99 + 15 = 666.

It is not a de Polignac number, because 455439915 - 2⁶ = 455439851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 77490 + ... + 83159.

It is an arithmetic number, because the mean of its divisors is an integer number (23326380).

Almost surely, 2^455439915 is an apocalyptic number.

455439915 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

455439915 is an abundant number, since it is smaller than the sum of its proper divisors (477615285).

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

455439915 is a wasteful number, since it uses less digits than its factorization.

455439915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160673 (or 160664 counting only the distinct ones).

The product of its digits is 486000, while the sum is 45.

The square root of 455439915 is about 21341.0382830827. The cubic root of 455439915 is about 769.3849673583.

The spelling of 455439915 in words is "four hundred fifty-five million, four hundred thirty-nine thousand, nine hundred fifteen".