42293239 has 4 divisors (see below), whose sum is σ = 42394120. Its totient is φ = 42192360.

The previous prime is 42293227. The next prime is 42293243. The reversal of 42293239 is 93239224.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42293239 - 2²¹ = 40196087 is a prime.

It is a super-2 number, since 2×42293239² = 3577436130222242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42293039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49809 + ... + 50650.

It is an arithmetic number, because the mean of its divisors is an integer number (10598530).

Almost surely, 2^42293239 is an apocalyptic number.

42293239 is a deficient number, since it is larger than the sum of its proper divisors (100881).

42293239 is a wasteful number, since it uses less digits than its factorization.

42293239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100880.

The product of its digits is 23328, while the sum is 34.

The square root of 42293239 is about 6503.3252263746. The cubic root of 42293239 is about 348.4097625128.

The spelling of 42293239 in words is "forty-two million, two hundred ninety-three thousand, two hundred thirty-nine".