404628080 has 20 divisors (see below), whose sum is σ = 940760472. Its totient is φ = 161851200.

The previous prime is 404628061. The next prime is 404628109. The reversal of 404628080 is 80826404.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2528846 + ... + 2529005.

Almost surely, 2^404628080 is an apocalyptic number.

404628080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404628080 is an abundant number, since it is smaller than the sum of its proper divisors (536132392).

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

404628080 is a wasteful number, since it uses less digits than its factorization.

404628080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057864 (or 5057858 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 404628080 is about 20115.3692484130. The cubic root of 404628080 is about 739.6370755066.

The spelling of 404628080 in words is "four hundred four million, six hundred twenty-eight thousand, eighty".