7940990 has 16 divisors (see below), whose sum is σ = 14564448. Its totient is φ = 3116256.

The previous prime is 7940981. The next prime is 7941007. The reversal of 7940990 is 990497.

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, 6962 + ... + 8021.

It is an arithmetic number, because the mean of its divisors is an integer number (910278).

Almost surely, 2^7940990 is an apocalyptic number.

7940990 is a deficient number, since it is larger than the sum of its proper divisors (6623458).

7940990 is a wasteful number, since it uses less digits than its factorization.

7940990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15043.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 7940990 is about 2817.9762241722. The cubic root of 7940990 is about 199.5070359304.

The spelling of 7940990 in words is "seven million, nine hundred forty thousand, nine hundred ninety".