3994400 has 36 divisors (see below), whose sum is σ = 9753282. Its totient is φ = 1597440.

The previous prime is 3994391. The next prime is 3994411. The reversal of 3994400 is 44993.

It is a happy number.

3994400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 2676496 + 1317904 = 1636^2 + 1148^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1697 + ... + 3296.

Almost surely, 2^3994400 is an apocalyptic number.

It is an amenable number.

3994400 is an abundant number, since it is smaller than the sum of its proper divisors (5758882).

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

3994400 is a wasteful number, since it uses less digits than its factorization.

3994400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5013 (or 5000 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 3994400 is about 1998.5995096567. The cubic root of 3994400 is about 158.6659918841.

The spelling of 3994400 in words is "three million, nine hundred ninety-four thousand, four hundred".