42074979 has 8 divisors (see below), whose sum is σ = 57468432. Its totient is φ = 27365760.

The previous prime is 42074959. The next prime is 42074993. The reversal of 42074979 is 97947024.

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

It is not a de Polignac number, because 42074979 - 2⁵ = 42074947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42074979.

It is not an unprimeable number, because it can be changed into a prime (42074909) 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, 170914 + ... + 171159.

It is an arithmetic number, because the mean of its divisors is an integer number (7183554).

Almost surely, 2^42074979 is an apocalyptic number.

42074979 is a deficient number, since it is larger than the sum of its proper divisors (15393453).

42074979 is a wasteful number, since it uses less digits than its factorization.

42074979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342117.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 42074979 is about 6486.5228743912. The cubic root of 42074979 is about 347.8093899351.

The spelling of 42074979 in words is "forty-two million, seventy-four thousand, nine hundred seventy-nine".