451099904 has 36 divisors (see below), whose sum is σ = 902170500. Its totient is φ = 225116160.

The previous prime is 451099889. The next prime is 451099921. The reversal of 451099904 is 409990154.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 233478400 + 217621504 = 15280^2 + 14752^2 .

It is a super-2 number, since 2×451099904² = 406982246777618432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162722 + ... + 165470.

Almost surely, 2^451099904 is an apocalyptic number.

It is an amenable number.

451099904 is a deficient number, since it is larger than the sum of its proper divisors (451070596).

451099904 is an equidigital number, since it uses as much as digits as its factorization.

451099904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3406 (or 3392 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 451099904 is about 21239.1125991648. The cubic root of 451099904 is about 766.9332701865.

The spelling of 451099904 in words is "four hundred fifty-one million, ninety-nine thousand, nine hundred four".