42622913 has 4 divisors (see below), whose sum is σ = 42773808. Its totient is φ = 42472020.

The previous prime is 42622891. The next prime is 42622919. The reversal of 42622913 is 31922624.

42622913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42622913 - 2²⁴ = 25845697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42622919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75023 + ... + 75588.

It is an arithmetic number, because the mean of its divisors is an integer number (10693452).

Almost surely, 2^42622913 is an apocalyptic number.

It is an amenable number.

42622913 is a deficient number, since it is larger than the sum of its proper divisors (150895).

42622913 is a wasteful number, since it uses less digits than its factorization.

42622913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150894.

The product of its digits is 5184, while the sum is 29.

The square root of 42622913 is about 6528.6225959233. The cubic root of 42622913 is about 349.3127002030.

The spelling of 42622913 in words is "forty-two million, six hundred twenty-two thousand, nine hundred thirteen".