42038591 has 8 divisors (see below), whose sum is σ = 48136320. Its totient is φ = 35963928.

The previous prime is 42038567. The next prime is 42038609. The reversal of 42038591 is 19583024.

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

It is not a de Polignac number, because 42038591 - 2¹⁴ = 42022207 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 (42038531) 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, 1661 + ... + 9318.

It is an arithmetic number, because the mean of its divisors is an integer number (6017040).

Almost surely, 2^42038591 is an apocalyptic number.

42038591 is a deficient number, since it is larger than the sum of its proper divisors (6097729).

42038591 is a wasteful number, since it uses less digits than its factorization.

42038591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11533.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 42038591 is about 6483.7173750866. The cubic root of 42038591 is about 347.7090948697.

The spelling of 42038591 in words is "forty-two million, thirty-eight thousand, five hundred ninety-one".