8401404 has 24 divisors (see below), whose sum is σ = 21385728. Its totient is φ = 2545840.

The previous prime is 8401397. The next prime is 8401409. The reversal of 8401404 is 4041048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8401409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31692 + ... + 31955.

It is an arithmetic number, because the mean of its divisors is an integer number (891072).

Almost surely, 2^8401404 is an apocalyptic number.

It is an amenable number.

8401404 is an abundant number, since it is smaller than the sum of its proper divisors (12984324).

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

8401404 is a wasteful number, since it uses less digits than its factorization.

8401404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63665 (or 63663 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 8401404 is about 2898.5175521290. The cubic root of 8401404 is about 203.2905962914.

The spelling of 8401404 in words is "eight million, four hundred one thousand, four hundred four".