3900140 has 24 divisors (see below), whose sum is σ = 8672832. Its totient is φ = 1468160.

The previous prime is 3900131. The next prime is 3900167. The reversal of 3900140 is 410093.

It is a super-2 number, since 2×3900140² = 30422184039200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

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, 5396 + ... + 6075.

It is an arithmetic number, because the mean of its divisors is an integer number (361368).

Almost surely, 2^3900140 is an apocalyptic number.

It is an amenable number.

3900140 is an abundant number, since it is smaller than the sum of its proper divisors (4772692).

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

3900140 is a wasteful number, since it uses less digits than its factorization.

3900140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11497 (or 11495 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3900140 is about 1974.8772113729. The cubic root of 3900140 is about 157.4079751323.

The spelling of 3900140 in words is "three million, nine hundred thousand, one hundred forty".