44455189 has 2 divisors, whose sum is σ = 44455190. Its totient is φ = 44455188.

The previous prime is 44455171. The next prime is 44455219. The reversal of 44455189 is 98155444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24830289 + 19624900 = 4983^2 + 4430^2 .

It is a cyclic number.

It is not a de Polignac number, because 44455189 - 2⁵ = 44455157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44455139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22227594 + 22227595.

It is an arithmetic number, because the mean of its divisors is an integer number (22227595).

Almost surely, 2^44455189 is an apocalyptic number.

It is an amenable number.

44455189 is a deficient number, since it is larger than the sum of its proper divisors (1).

44455189 is an equidigital number, since it uses as much as digits as its factorization.

44455189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 115200, while the sum is 40.

The square root of 44455189 is about 6667.4724596357. The cubic root of 44455189 is about 354.2480652460.

It can be divided in two parts, 44455 and 189, that added together give a palindrome (44644).

The spelling of 44455189 in words is "forty-four million, four hundred fifty-five thousand, one hundred eighty-nine".