42901889 has 4 divisors (see below), whose sum is σ = 42994224. Its totient is φ = 42809556.

The previous prime is 42901883. The next prime is 42901891. The reversal of 42901889 is 98810924.

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 42901889 - 2²⁰ = 41853313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42901883) 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, 45467 + ... + 46400.

It is an arithmetic number, because the mean of its divisors is an integer number (10748556).

Almost surely, 2^42901889 is an apocalyptic number.

It is an amenable number.

42901889 is a deficient number, since it is larger than the sum of its proper divisors (92335).

42901889 is an equidigital number, since it uses as much as digits as its factorization.

42901889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92334.

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 42901889 is about 6549.9533586126. The cubic root of 42901889 is about 350.0731520567.

The spelling of 42901889 in words is "forty-two million, nine hundred one thousand, eight hundred eighty-nine".