32042639 has 4 divisors (see below), whose sum is σ = 32184024. Its totient is φ = 31901256.

The previous prime is 32042617. The next prime is 32042663. The reversal of 32042639 is 93624023.

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 32042639 - 2¹² = 32038543 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 (32042239) 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, 70352 + ... + 70805.

It is an arithmetic number, because the mean of its divisors is an integer number (8046006).

Almost surely, 2^32042639 is an apocalyptic number.

32042639 is a deficient number, since it is larger than the sum of its proper divisors (141385).

32042639 is a wasteful number, since it uses less digits than its factorization.

32042639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141384.

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

The square root of 32042639 is about 5660.6217856345. The cubic root of 32042639 is about 317.6211586288.

The spelling of 32042639 in words is "thirty-two million, forty-two thousand, six hundred thirty-nine".