404495616 has 144 divisors (see below), whose sum is σ = 1249816064. Its totient is φ = 113743872.

The previous prime is 404495593. The next prime is 404495633. The reversal of 404495616 is 616594404.

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, 359631 + ... + 360753.

Almost surely, 2^404495616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 404495616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624908032).

404495616 is an abundant number, since it is smaller than the sum of its proper divisors (845320448).

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

404495616 is a wasteful number, since it uses less digits than its factorization.

404495616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216 (or 1202 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 404495616 is about 20112.0763721700. The cubic root of 404495616 is about 739.5563544825.

The spelling of 404495616 in words is "four hundred four million, four hundred ninety-five thousand, six hundred sixteen".