3942690 has 32 divisors (see below), whose sum is σ = 9961920. Its totient is φ = 995904.

The previous prime is 3942677. The next prime is 3942721. The reversal of 3942690 is 962493.

It is a super-2 number, since 2×3942690² = 31089608872200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2889 + ... + 4028.

It is an arithmetic number, because the mean of its divisors is an integer number (311310).

Almost surely, 2^3942690 is an apocalyptic number.

3942690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3942690 is an abundant number, since it is smaller than the sum of its proper divisors (6019230).

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

3942690 is a wasteful number, since it uses less digits than its factorization.

3942690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6946.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 3942690 is about 1985.6208097217. The cubic root of 3942690 is about 157.9783391766.

The spelling of 3942690 in words is "three million, nine hundred forty-two thousand, six hundred ninety".