7905742 has 8 divisors (see below), whose sum is σ = 12770856. Its totient is φ = 3648792.

The previous prime is 7905739. The next prime is 7905757. The reversal of 7905742 is 2475097.

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

It is a junction number, because it is equal to n+sod(n) for n = 7905698 and 7905707.

It is a congruent number.

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, 152008 + ... + 152059.

It is an arithmetic number, because the mean of its divisors is an integer number (1596357).

Almost surely, 2^7905742 is an apocalyptic number.

7905742 is a deficient number, since it is larger than the sum of its proper divisors (4865114).

7905742 is a wasteful number, since it uses less digits than its factorization.

7905742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304082.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 7905742 is about 2811.7151349310. The cubic root of 7905742 is about 199.2114113934.

The spelling of 7905742 in words is "seven million, nine hundred five thousand, seven hundred forty-two".