7929442 has 8 divisors (see below), whose sum is σ = 11970396. Its totient is φ = 3939312.

The previous prime is 7929431. The next prime is 7929443. The reversal of 7929442 is 2449297.

It can be written as a sum of positive squares in 2 ways, for example, as 7678441 + 251001 = 2771^2 + 501^2 .

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

It is not an unprimeable number, because it can be changed into a prime (7929443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12313 + ... + 12940.

Almost surely, 2^7929442 is an apocalyptic number.

7929442 is a deficient number, since it is larger than the sum of its proper divisors (4040954).

7929442 is a wasteful number, since it uses less digits than its factorization.

7929442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25412.

The product of its digits is 36288, while the sum is 37.

The square root of 7929442 is about 2815.9264905178. The cubic root of 7929442 is about 199.4102795245.

The spelling of 7929442 in words is "seven million, nine hundred twenty-nine thousand, four hundred forty-two".