42364779 has 8 divisors (see below), whose sum is σ = 56635392. Its totient is φ = 28168680.

The previous prime is 42364769. The next prime is 42364789. The reversal of 42364779 is 97746324.

It is an interprime number because it is at equal distance from previous prime (42364769) and next prime (42364789).

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

It is not a de Polignac number, because 42364779 - 2⁸ = 42364523 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 42364779.

It is not an unprimeable number, because it can be changed into a prime (42364769) 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, 17287 + ... + 19584.

It is an arithmetic number, because the mean of its divisors is an integer number (7079424).

Almost surely, 2^42364779 is an apocalyptic number.

42364779 is a deficient number, since it is larger than the sum of its proper divisors (14270613).

42364779 is a wasteful number, since it uses less digits than its factorization.

42364779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37257.

The product of its digits is 254016, while the sum is 42.

The square root of 42364779 is about 6508.8231655192. The cubic root of 42364779 is about 348.6060995974.

The spelling of 42364779 in words is "forty-two million, three hundred sixty-four thousand, seven hundred seventy-nine".