42979395 has 16 divisors (see below), whose sum is σ = 69040800. Its totient is φ = 22831104.

The previous prime is 42979381. The next prime is 42979399. The reversal of 42979395 is 59397924.

It is not a de Polignac number, because 42979395 - 2⁴ = 42979379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42979399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1720 + ... + 9429.

It is an arithmetic number, because the mean of its divisors is an integer number (4315050).

Almost surely, 2^42979395 is an apocalyptic number.

42979395 is a deficient number, since it is larger than the sum of its proper divisors (26061405).

42979395 is a wasteful number, since it uses less digits than its factorization.

42979395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11414.

The product of its digits is 612360, while the sum is 48.

The square root of 42979395 is about 6555.8672195218. The cubic root of 42979395 is about 350.2838377825.

The spelling of 42979395 in words is "forty-two million, nine hundred seventy-nine thousand, three hundred ninety-five".