42373581 has 8 divisors (see below), whose sum is σ = 57294144. Its totient is φ = 27851040.

The previous prime is 42373579. The next prime is 42373601. The reversal of 42373581 is 18537324.

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

It is not a de Polignac number, because 42373581 - 2¹ = 42373579 is a prime.

It is a super-2 number, since 2×42373581² = 3591040733527122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42373501) 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, 99256 + ... + 99681.

It is an arithmetic number, because the mean of its divisors is an integer number (7161768).

Almost surely, 2^42373581 is an apocalyptic number.

It is an amenable number.

42373581 is a deficient number, since it is larger than the sum of its proper divisors (14920563).

42373581 is a wasteful number, since it uses less digits than its factorization.

42373581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199011.

The product of its digits is 20160, while the sum is 33.

The square root of 42373581 is about 6509.4992894999. The cubic root of 42373581 is about 348.6302408650.

The spelling of 42373581 in words is "forty-two million, three hundred seventy-three thousand, five hundred eighty-one".