7942045 has 8 divisors (see below), whose sum is σ = 9838080. Its totient is φ = 6148560.

The previous prime is 7942031. The next prime is 7942063. The reversal of 7942045 is 5402497.

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

It is not a de Polignac number, because 7942045 - 2⁷ = 7941917 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 7941998 and 7942016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25465 + ... + 25774.

It is an arithmetic number, because the mean of its divisors is an integer number (1229760).

Almost surely, 2^7942045 is an apocalyptic number.

It is an amenable number.

7942045 is a deficient number, since it is larger than the sum of its proper divisors (1896035).

7942045 is a wasteful number, since it uses less digits than its factorization.

7942045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51275.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 7942045 is about 2818.1634090308. The cubic root of 7942045 is about 199.5158707064.

It can be divided in two parts, 79 and 42045, that added together give a palindrome (42124).

The spelling of 7942045 in words is "seven million, nine hundred forty-two thousand, forty-five".