44121393 has 12 divisors (see below), whose sum is σ = 63789648. Its totient is φ = 29387160.

The previous prime is 44121379. The next prime is 44121403. The reversal of 44121393 is 39312144.

44121393 is a `hidden beast` number, since 441 + 213 + 9 + 3 = 666.

It is not a de Polignac number, because 44121393 - 2⁴ = 44121377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44121313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14946 + ... + 17652.

It is an arithmetic number, because the mean of its divisors is an integer number (5315804).

Almost surely, 2^44121393 is an apocalyptic number.

It is an amenable number.

44121393 is a deficient number, since it is larger than the sum of its proper divisors (19668255).

44121393 is a wasteful number, since it uses less digits than its factorization.

44121393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4524 (or 4521 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 44121393 is about 6642.3936197729. The cubic root of 44121393 is about 353.3592017570.

Subtracting from 44121393 its reverse (39312144), we obtain a square (4809249 = 2193²).

The spelling of 44121393 in words is "forty-four million, one hundred twenty-one thousand, three hundred ninety-three".