44720138 has 8 divisors (see below), whose sum is σ = 67179360. Its totient is φ = 22327020.

The previous prime is 44720113. The next prime is 44720147. The reversal of 44720138 is 83102744.

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

It is a self number, because there is not a number n which added to its sum of digits gives 44720138.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14798 + ... + 17561.

It is an arithmetic number, because the mean of its divisors is an integer number (8397420).

Almost surely, 2^44720138 is an apocalyptic number.

44720138 is a deficient number, since it is larger than the sum of its proper divisors (22459222).

44720138 is a wasteful number, since it uses less digits than its factorization.

44720138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33052.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 44720138 is about 6687.3117169757. The cubic root of 44720138 is about 354.9504341299.

The spelling of 44720138 in words is "forty-four million, seven hundred twenty thousand, one hundred thirty-eight".