42242079 has 16 divisors (see below), whose sum is σ = 61574400. Its totient is φ = 25546560.

The previous prime is 42242077. The next prime is 42242087. The reversal of 42242079 is 97024224.

It is not a de Polignac number, because 42242079 - 2¹ = 42242077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242071) 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, 18699 + ... + 20835.

It is an arithmetic number, because the mean of its divisors is an integer number (3848400).

Almost surely, 2^42242079 is an apocalyptic number.

42242079 is a deficient number, since it is larger than the sum of its proper divisors (19332321).

42242079 is a wasteful number, since it uses less digits than its factorization.

42242079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2750.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 42242079 is about 6499.3906637469. The cubic root of 42242079 is about 348.2692212514.

The spelling of 42242079 in words is "forty-two million, two hundred forty-two thousand, seventy-nine".