7042399 has 12 divisors (see below), whose sum is σ = 8716656. Its totient is φ = 5571072.

The previous prime is 7042391. The next prime is 7042421. The reversal of 7042399 is 9932407.

It is not a de Polignac number, because 7042399 - 2³ = 7042391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7042391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1794 + ... + 4159.

It is an arithmetic number, because the mean of its divisors is an integer number (726388).

Almost surely, 2^7042399 is an apocalyptic number.

7042399 is a deficient number, since it is larger than the sum of its proper divisors (1674257).

7042399 is a wasteful number, since it uses less digits than its factorization.

7042399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5986 (or 5973 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 7042399 is about 2653.7518723498. The cubic root of 7042399 is about 191.6785619166.

The spelling of 7042399 in words is "seven million, forty-two thousand, three hundred ninety-nine".