8404402 has 16 divisors (see below), whose sum is σ = 13057560. Its totient is φ = 4053888.

The previous prime is 8404387. The next prime is 8404411. The reversal of 8404402 is 2044048.

It can be written as a sum of positive squares in 4 ways, for example, as 8346321 + 58081 = 2889^2 + 241^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9724 + ... + 10552.

Almost surely, 2^8404402 is an apocalyptic number.

8404402 is a deficient number, since it is larger than the sum of its proper divisors (4653158).

8404402 is a wasteful number, since it uses less digits than its factorization.

8404402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 8404402 is about 2899.0346669193. The cubic root of 8404402 is about 203.3147745013.

The spelling of 8404402 in words is "eight million, four hundred four thousand, four hundred two".