80407404 has 180 divisors, whose sum is σ = 264955152. Its totient is φ = 20813760.

The previous prime is 80407391. The next prime is 80407421. The reversal of 80407404 is 40470408.

80407404 = 7² + 8² + ... + 622².

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 274282 + ... + 274574.

Almost surely, 2^80407404 is an apocalyptic number.

80407404 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80407404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132477576).

80407404 is an abundant number, since it is smaller than the sum of its proper divisors (184547748).

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

80407404 is a wasteful number, since it uses less digits than its factorization.

80407404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 80407404 is about 8967.0175643856. The cubic root of 80407404 is about 431.6171376382.

The spelling of 80407404 in words is "eighty million, four hundred seven thousand, four hundred four".