10400404 has 24 divisors (see below), whose sum is σ = 21365120. Its totient is φ = 4336416.

The previous prime is 10400399. The next prime is 10400417. The reversal of 10400404 is 40400401.

It is a happy number.

10400404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 3984 + ... + 6055.

Almost surely, 2^10400404 is an apocalyptic number.

10400404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

10400404 is an abundant number, since it is smaller than the sum of its proper divisors (10964716).

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

10400404 is a wasteful number, since it uses less digits than its factorization.

10400404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10087 (or 10085 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 10400404 is about 3224.9657362521. The cubic root of 10400404 is about 218.2814030033.

Adding to 10400404 its reverse (40400401), we get a palindrome (50800805).

The spelling of 10400404 in words is "ten million, four hundred thousand, four hundred four".