44748989 has 4 divisors (see below), whose sum is σ = 44781120. Its totient is φ = 44716860.

The previous prime is 44748973. The next prime is 44749037. The reversal of 44748989 is 98984744.

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 44748989 - 2⁴ = 44748973 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44748989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44748919) 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, 13877 + ... + 16794.

It is an arithmetic number, because the mean of its divisors is an integer number (11195280).

Almost surely, 2^44748989 is an apocalyptic number.

It is an amenable number.

44748989 is a deficient number, since it is larger than the sum of its proper divisors (32131).

44748989 is a wasteful number, since it uses less digits than its factorization.

44748989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32130.

The product of its digits is 2322432, while the sum is 53.

The square root of 44748989 is about 6689.4685140151. The cubic root of 44748989 is about 355.0267492903.

The spelling of 44748989 in words is "forty-four million, seven hundred forty-eight thousand, nine hundred eighty-nine".