44146389 has 16 divisors (see below), whose sum is σ = 67368960. Its totient is φ = 25189680.

The previous prime is 44146379. The next prime is 44146409. The reversal of 44146389 is 98364144.

It is a happy number.

It is not a de Polignac number, because 44146389 - 2⁵ = 44146357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44146339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20632 + ... + 22670.

It is an arithmetic number, because the mean of its divisors is an integer number (4210560).

Almost surely, 2^44146389 is an apocalyptic number.

It is an amenable number.

44146389 is a deficient number, since it is larger than the sum of its proper divisors (23222571).

44146389 is a wasteful number, since it uses less digits than its factorization.

44146389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080.

The product of its digits is 82944, while the sum is 39.

The square root of 44146389 is about 6644.2749040057. The cubic root of 44146389 is about 353.4259184415.

The spelling of 44146389 in words is "forty-four million, one hundred forty-six thousand, three hundred eighty-nine".