8407404 has 36 divisors (see below), whose sum is σ = 21341320. Its totient is φ = 2790720.

The previous prime is 8407391. The next prime is 8407409. The reversal of 8407404 is 4047048.

It is a tau number, because it is divible by the number of its divisors (36).

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (8407409) 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, 14439 + ... + 15009.

Almost surely, 2^8407404 is an apocalyptic number.

It is an amenable number.

8407404 is an abundant number, since it is smaller than the sum of its proper divisors (12933916).

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

8407404 is a wasteful number, since it uses less digits than its factorization.

8407404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 985 counting only the distinct ones).

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

The square root of 8407404 is about 2899.5523792475. The cubic root of 8407404 is about 203.3389792096.

The spelling of 8407404 in words is "eight million, four hundred seven thousand, four hundred four".