42232889 has 4 divisors (see below), whose sum is σ = 42305424. Its totient is φ = 42160356.

The previous prime is 42232831. The next prime is 42232907. The reversal of 42232889 is 98823224.

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 42232889 - 2¹² = 42228793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42232189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35387 + ... + 36560.

It is an arithmetic number, because the mean of its divisors is an integer number (10576356).

Almost surely, 2^42232889 is an apocalyptic number.

It is an amenable number.

42232889 is a deficient number, since it is larger than the sum of its proper divisors (72535).

42232889 is an equidigital number, since it uses as much as digits as its factorization.

42232889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72534.

The product of its digits is 55296, while the sum is 38.

The square root of 42232889 is about 6498.6836359374. The cubic root of 42232889 is about 348.2439634488.

The spelling of 42232889 in words is "forty-two million, two hundred thirty-two thousand, eight hundred eighty-nine".