3944736 has 36 divisors (see below), whose sum is σ = 11218662. Its totient is φ = 1314816.

The previous prime is 3944729. The next prime is 3944767. The reversal of 3944736 is 6374493.

It can be written as a sum of positive squares in only one way, i.e., 3920400 + 24336 = 1980^2 + 156^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3944736.

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, 6561 + ... + 7136.

Almost surely, 2^3944736 is an apocalyptic number.

3944736 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3944736 is an abundant number, since it is smaller than the sum of its proper divisors (7273926).

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

3944736 is a wasteful number, since it uses less digits than its factorization.

3944736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13713 (or 13702 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 3944736 is about 1986.1359470087. The cubic root of 3944736 is about 158.0056612830.

The spelling of 3944736 in words is "three million, nine hundred forty-four thousand, seven hundred thirty-six".