42572389 has 8 divisors (see below), whose sum is σ = 43263360. Its totient is φ = 41885376.

The previous prime is 42572357. The next prime is 42572417. The reversal of 42572389 is 98327524.

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

It is a cyclic number.

It is not a de Polignac number, because 42572389 - 2⁵ = 42572357 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 (42572329) 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, 26637 + ... + 28189.

It is an arithmetic number, because the mean of its divisors is an integer number (5407920).

Almost surely, 2^42572389 is an apocalyptic number.

It is an amenable number.

42572389 is a deficient number, since it is larger than the sum of its proper divisors (690971).

42572389 is a wasteful number, since it uses less digits than its factorization.

42572389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979.

The product of its digits is 120960, while the sum is 40.

The square root of 42572389 is about 6524.7520259394. The cubic root of 42572389 is about 349.1746238208.

The spelling of 42572389 in words is "forty-two million, five hundred seventy-two thousand, three hundred eighty-nine".