44189145 has 160 divisors (see below), whose sum is σ = 107331840. Its totient is φ = 16796160.

The previous prime is 44189143. The next prime is 44189147. The reversal of 44189145 is 54198144.

It is an interprime number because it is at equal distance from previous prime (44189143) and next prime (44189147).

It is not a de Polignac number, because 44189145 - 2¹ = 44189143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44189143) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 405351 + ... + 405459.

It is an arithmetic number, because the mean of its divisors is an integer number (670824).

Almost surely, 2^44189145 is an apocalyptic number.

44189145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

44189145 is an abundant number, since it is smaller than the sum of its proper divisors (63142695).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44189145 is a wasteful number, since it uses less digits than its factorization.

44189145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 148 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 44189145 is about 6647.4916321873. The cubic root of 44189145 is about 353.5399798868.

The spelling of 44189145 in words is "forty-four million, one hundred eighty-nine thousand, one hundred forty-five".