3952840 has 32 divisors (see below), whose sum is σ = 9418680. Its totient is φ = 1487872.

The previous prime is 3952813. The next prime is 3952873. The reversal of 3952840 is 482593.

It can be written as a sum of positive squares in 4 ways, for example, as 3771364 + 181476 = 1942^2 + 426^2 .

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, 2227 + ... + 3586.

Almost surely, 2^3952840 is an apocalyptic number.

It is an amenable number.

3952840 is an abundant number, since it is smaller than the sum of its proper divisors (5465840).

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

3952840 is a wasteful number, since it uses less digits than its factorization.

3952840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5841 (or 5837 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 3952840 is about 1988.1750425956. The cubic root of 3952840 is about 158.1137886722.

The spelling of 3952840 in words is "three million, nine hundred fifty-two thousand, eight hundred forty".