79442045 has 8 divisors (see below), whose sum is σ = 95399424. Its totient is φ = 63507664.

The previous prime is 79442029. The next prime is 79442047. The reversal of 79442045 is 54024497.

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

It is a cyclic number.

It is not a de Polignac number, because 79442045 - 2⁴ = 79442029 is a prime.

It is a super-2 number, since 2×79442045² = 12622077027564050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79441996 and 79442014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79442047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3092 + ... + 12978.

It is an arithmetic number, because the mean of its divisors is an integer number (11924928).

Almost surely, 2^79442045 is an apocalyptic number.

It is an amenable number.

79442045 is a deficient number, since it is larger than the sum of its proper divisors (15957379).

79442045 is a wasteful number, since it uses less digits than its factorization.

79442045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11499.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 79442045 is about 8913.0267025293. The cubic root of 79442045 is about 429.8828687636.

The spelling of 79442045 in words is "seventy-nine million, four hundred forty-two thousand, forty-five".