44472891 has 4 divisors (see below), whose sum is σ = 59297192. Its totient is φ = 29648592.

The previous prime is 44472887. The next prime is 44472893. The reversal of 44472891 is 19827444.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 44472891 - 2² = 44472887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44472893) 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, 7412146 + ... + 7412151.

It is an arithmetic number, because the mean of its divisors is an integer number (14824298).

Almost surely, 2^44472891 is an apocalyptic number.

44472891 is a deficient number, since it is larger than the sum of its proper divisors (14824301).

44472891 is a wasteful number, since it uses less digits than its factorization.

44472891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14824300.

The product of its digits is 64512, while the sum is 39.

The square root of 44472891 is about 6668.7998170585. The cubic root of 44472891 is about 354.2950793833.

The spelling of 44472891 in words is "forty-four million, four hundred seventy-two thousand, eight hundred ninety-one".