7942402 has 8 divisors (see below), whose sum is σ = 12830076. Its totient is φ = 3665712.

The previous prime is 7942387. The next prime is 7942411. The reversal of 7942402 is 2042497.

It can be written as a sum of positive squares in 2 ways, for example, as 6255001 + 1687401 = 2501^2 + 1299^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152713 + ... + 152764.

Almost surely, 2^7942402 is an apocalyptic number.

7942402 is a deficient number, since it is larger than the sum of its proper divisors (4887674).

7942402 is a wasteful number, since it uses less digits than its factorization.

7942402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305492.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 7942402 is about 2818.2267474424. The cubic root of 7942402 is about 199.5188601169.

Adding to 7942402 its reverse (2042497), we get a palindrome (9984899).

The spelling of 7942402 in words is "seven million, nine hundred forty-two thousand, four hundred two".