402104404 has 18 divisors (see below), whose sum is σ = 761977230. Its totient is φ = 185586336.

The previous prime is 402104399. The next prime is 402104413. The reversal of 402104404 is 404401204.

It can be written as a sum of positive squares in 3 ways, for example, as 28068804 + 374035600 = 5298^2 + 19340^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 296739 + ... + 298090.

Almost surely, 2^402104404 is an apocalyptic number.

It is an amenable number.

402104404 is a deficient number, since it is larger than the sum of its proper divisors (359872826).

402104404 is a wasteful number, since it uses less digits than its factorization.

402104404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594859 (or 594844 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 402104404 is about 20052.5410858574. The cubic root of 402104404 is about 738.0961554880.

Adding to 402104404 its reverse (404401204), we get a palindrome (806505608).

The spelling of 402104404 in words is "four hundred two million, one hundred four thousand, four hundred four".