3949494 has 16 divisors (see below), whose sum is σ = 7922880. Its totient is φ = 1312520.

The previous prime is 3949487. The next prime is 3949501. The reversal of 3949494 is 4949493.

It is an interprime number because it is at equal distance from previous prime (3949487) and next prime (3949501).

It is a congruent number.

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, 1729 + ... + 3299.

It is an arithmetic number, because the mean of its divisors is an integer number (495180).

Almost surely, 2^3949494 is an apocalyptic number.

3949494 is an abundant number, since it is smaller than the sum of its proper divisors (3973386).

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

3949494 is a wasteful number, since it uses less digits than its factorization.

3949494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995.

The product of its digits is 139968, while the sum is 42.

The square root of 3949494 is about 1987.3333892430. Note that the first 4 decimals coincide. The cubic root of 3949494 is about 158.0691626916.

Subtracting 3949494 from its reverse (4949493), we obtain a palindrome (999999).

It can be divided in two parts, 3 and 949494, that multiplied together give a palindrome (2848482).

The spelling of 3949494 in words is "three million, nine hundred forty-nine thousand, four hundred ninety-four".