3951942 has 16 divisors (see below), whose sum is σ = 8159232. Its totient is φ = 1274760.

The previous prime is 3951923. The next prime is 3951947. The reversal of 3951942 is 2491593.

3951942 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3951947) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10438 + ... + 10809.

It is an arithmetic number, because the mean of its divisors is an integer number (509952).

Almost surely, 2^3951942 is an apocalyptic number.

3951942 is an abundant number, since it is smaller than the sum of its proper divisors (4207290).

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

3951942 is a wasteful number, since it uses less digits than its factorization.

3951942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21283.

The product of its digits is 9720, while the sum is 33.

The square root of 3951942 is about 1987.9491945218. The cubic root of 3951942 is about 158.1018144178.

The spelling of 3951942 in words is "three million, nine hundred fifty-one thousand, nine hundred forty-two".