44138812 has 24 divisors (see below), whose sum is σ = 81774000. Its totient is φ = 20810496.

The previous prime is 44138803. The next prime is 44138833. The reversal of 44138812 is 21883144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564 + ... + 9412.

It is an arithmetic number, because the mean of its divisors is an integer number (3407250).

Almost surely, 2^44138812 is an apocalyptic number.

It is an amenable number.

44138812 is a deficient number, since it is larger than the sum of its proper divisors (37635188).

44138812 is a wasteful number, since it uses less digits than its factorization.

44138812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8925 (or 8923 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 44138812 is about 6643.7046894033. The cubic root of 44138812 is about 353.4056973735.

It can be divided in two parts, 4413 and 8812, that added together give a square (13225 = 115²).

The spelling of 44138812 in words is "forty-four million, one hundred thirty-eight thousand, eight hundred twelve".