45238889 has 4 divisors (see below), whose sum is σ = 46698240. Its totient is φ = 43779540.

The previous prime is 45238877. The next prime is 45238913. The reversal of 45238889 is 98883254.

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 45238889 - 2⁴ = 45238873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45231889) 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, 729629 + ... + 729690.

It is an arithmetic number, because the mean of its divisors is an integer number (11674560).

Almost surely, 2^45238889 is an apocalyptic number.

It is an amenable number.

45238889 is a deficient number, since it is larger than the sum of its proper divisors (1459351).

45238889 is a wasteful number, since it uses less digits than its factorization.

45238889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459350.

The product of its digits is 552960, while the sum is 47.

The square root of 45238889 is about 6725.9860987070. The cubic root of 45238889 is about 356.3176293480.

The spelling of 45238889 in words is "forty-five million, two hundred thirty-eight thousand, eight hundred eighty-nine".