42032639 has 8 divisors (see below), whose sum is σ = 46500480. Its totient is φ = 37672600.

The previous prime is 42032623. The next prime is 42032659. The reversal of 42032639 is 93623024.

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

It is not a de Polignac number, because 42032639 - 2⁴ = 42032623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42032659) 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, 26129 + ... + 27690.

It is an arithmetic number, because the mean of its divisors is an integer number (5812560).

Almost surely, 2^42032639 is an apocalyptic number.

42032639 is a deficient number, since it is larger than the sum of its proper divisors (4467841).

42032639 is a wasteful number, since it uses less digits than its factorization.

42032639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53901.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 42032639 is about 6483.2583628913. The cubic root of 42032639 is about 347.6926840579.

The spelling of 42032639 in words is "forty-two million, thirty-two thousand, six hundred thirty-nine".