404945454 has 32 divisors (see below), whose sum is σ = 833299200. Its totient is φ = 131136192.

The previous prime is 404945417. The next prime is 404945539. The reversal of 404945454 is 454549404.

It is a super-2 number, since 2×404945454² = 327961641430532232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22447 + ... + 36245.

It is an arithmetic number, because the mean of its divisors is an integer number (26040600).

Almost surely, 2^404945454 is an apocalyptic number.

404945454 is an abundant number, since it is smaller than the sum of its proper divisors (428353746).

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

404945454 is a wasteful number, since it uses less digits than its factorization.

404945454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13944.

The product of its (nonzero) digits is 230400, while the sum is 39.

The square root of 404945454 is about 20123.2565455992. The cubic root of 404945454 is about 739.8304054983.

It can be divided in two parts, 40 and 4945454, that added together give a palindrome (4945494).

The spelling of 404945454 in words is "four hundred four million, nine hundred forty-five thousand, four hundred fifty-four".