3900388 has 12 divisors (see below), whose sum is σ = 6912640. Its totient is φ = 1925352.

The previous prime is 3900367. The next prime is 3900397. The reversal of 3900388 is 8830093.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5856 + ... + 6487.

Almost surely, 2^3900388 is an apocalyptic number.

It is an amenable number.

3900388 is a deficient number, since it is larger than the sum of its proper divisors (3012252).

3900388 is a wasteful number, since it uses less digits than its factorization.

3900388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12426 (or 12424 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3900388 is about 1974.9399990886. The cubic root of 3900388 is about 157.4113114527.

The spelling of 3900388 in words is "three million, nine hundred thousand, three hundred eighty-eight".