42372641 has 4 divisors (see below), whose sum is σ = 44602800. Its totient is φ = 40142484.

The previous prime is 42372623. The next prime is 42372689. The reversal of 42372641 is 14627324.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42372641 - 2²² = 38178337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42372241) 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, 1115051 + ... + 1115088.

It is an arithmetic number, because the mean of its divisors is an integer number (11150700).

Almost surely, 2^42372641 is an apocalyptic number.

It is an amenable number.

42372641 is a deficient number, since it is larger than the sum of its proper divisors (2230159).

42372641 is a wasteful number, since it uses less digits than its factorization.

42372641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230158.

The product of its digits is 8064, while the sum is 29.

The square root of 42372641 is about 6509.4270869255. The cubic root of 42372641 is about 348.6276628841.

Adding to 42372641 its reverse (14627324), we get a palindrome (56999965).

The spelling of 42372641 in words is "forty-two million, three hundred seventy-two thousand, six hundred forty-one".