404451404 has 36 divisors (see below), whose sum is σ = 853738704. Its totient is φ = 164209248.

The previous prime is 404451373. The next prime is 404451409. The reversal of 404451404 is 404154404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404451409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9899 + ... + 30114.

It is an arithmetic number, because the mean of its divisors is an integer number (23714964).

Almost surely, 2^404451404 is an apocalyptic number.

It is an amenable number.

404451404 is an abundant number, since it is smaller than the sum of its proper divisors (449287300).

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

404451404 is a wasteful number, since it uses less digits than its factorization.

404451404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40062 (or 40041 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 404451404 is about 20110.9772015186. The cubic root of 404451404 is about 739.5294086142.

The spelling of 404451404 in words is "four hundred four million, four hundred fifty-one thousand, four hundred four".