7042664 has 16 divisors (see below), whose sum is σ = 13234020. Its totient is φ = 3513600.

The previous prime is 7042649. The next prime is 7042681. The reversal of 7042664 is 4662407.

It can be written as a sum of positive squares in 2 ways, for example, as 7022500 + 20164 = 2650^2 + 142^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5264 + ... + 6464.

Almost surely, 2^7042664 is an apocalyptic number.

It is an amenable number.

7042664 is a deficient number, since it is larger than the sum of its proper divisors (6191356).

7042664 is a wasteful number, since it uses less digits than its factorization.

7042664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940 (or 1936 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 7042664 is about 2653.8018011901. The cubic root of 7042664 is about 191.6809661249.

The spelling of 7042664 in words is "seven million, forty-two thousand, six hundred sixty-four".