3900390140 has 24 divisors (see below), whose sum is σ = 8546942880. Its totient is φ = 1492323008.

The previous prime is 3900390097. The next prime is 3900390157. The reversal of 3900390140 is 410930093.

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, 4239095 + ... + 4240014.

It is an arithmetic number, because the mean of its divisors is an integer number (356122620).

Almost surely, 2^3900390140 is an apocalyptic number.

It is an amenable number.

3900390140 is an abundant number, since it is smaller than the sum of its proper divisors (4646552740).

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

3900390140 is a wasteful number, since it uses less digits than its factorization.

3900390140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8479141 (or 8479139 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 3900390140 is about 62453.1035257656. The cubic root of 3900390140 is about 1574.1134024135.

The spelling of 3900390140 in words is "three billion, nine hundred million, three hundred ninety thousand, one hundred forty".