44029989 has 24 divisors (see below), whose sum is σ = 65126880. Its totient is φ = 28655712.

The previous prime is 44029987. The next prime is 44030009. The reversal of 44029989 is 98992044.

It is not a de Polignac number, because 44029989 - 2¹ = 44029987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44029987) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150127 + ... + 150419.

It is an arithmetic number, because the mean of its divisors is an integer number (2713620).

Almost surely, 2^44029989 is an apocalyptic number.

It is an amenable number.

44029989 is a deficient number, since it is larger than the sum of its proper divisors (21096891).

44029989 is a wasteful number, since it uses less digits than its factorization.

44029989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 44029989 is about 6635.5097015979. The cubic root of 44029989 is about 353.1150210875.

The spelling of 44029989 in words is "forty-four million, twenty-nine thousand, nine hundred eighty-nine".