3902540 has 12 divisors (see below), whose sum is σ = 8195376. Its totient is φ = 1561008.

The previous prime is 3902531. The next prime is 3902557. The reversal of 3902540 is 452093.

3902540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3 ways as a sum of consecutive naturals, for example, 97544 + ... + 97583.

It is an arithmetic number, because the mean of its divisors is an integer number (682948).

Almost surely, 2^3902540 is an apocalyptic number.

It is an amenable number.

3902540 is an abundant number, since it is smaller than the sum of its proper divisors (4292836).

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

3902540 is a wasteful number, since it uses less digits than its factorization.

3902540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195136 (or 195134 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 3902540 is about 1975.4847506372. The cubic root of 3902540 is about 157.4402561681.

The spelling of 3902540 in words is "three million, nine hundred two thousand, five hundred forty".