44395381 has 8 divisors (see below), whose sum is σ = 49481280. Its totient is φ = 39584448.

The previous prime is 44395367. The next prime is 44395387. The reversal of 44395381 is 18359344.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 44395381 - 2¹⁵ = 44362613 is a prime.

It is a super-2 number, since 2×44395381² = 3941899708270322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44395381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44395387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68401 + ... + 69046.

It is an arithmetic number, because the mean of its divisors is an integer number (6185160).

Almost surely, 2^44395381 is an apocalyptic number.

It is an amenable number.

44395381 is a deficient number, since it is larger than the sum of its proper divisors (5085899).

44395381 is a wasteful number, since it uses less digits than its factorization.

44395381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137483.

The product of its digits is 51840, while the sum is 37.

The square root of 44395381 is about 6662.9858922258. The cubic root of 44395381 is about 354.0891308437.

The spelling of 44395381 in words is "forty-four million, three hundred ninety-five thousand, three hundred eighty-one".