3994690 has 32 divisors (see below), whose sum is σ = 8294400. Its totient is φ = 1356864.

The previous prime is 3994687. The next prime is 3994699. The reversal of 3994690 is 964993.

3994690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3994690² = 31915096392200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3994699) 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 15 ways as a sum of consecutive naturals, for example, 10239 + ... + 10621.

It is an arithmetic number, because the mean of its divisors is an integer number (259200).

Almost surely, 2^3994690 is an apocalyptic number.

3994690 is an abundant number, since it is smaller than the sum of its proper divisors (4299710).

3994690 is a wasteful number, since it uses less digits than its factorization.

3994690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 3994690 is about 1998.6720591433. The cubic root of 3994690 is about 158.6698315950.

The spelling of 3994690 in words is "three million, nine hundred ninety-four thousand, six hundred ninety".