44763981 has 8 divisors (see below), whose sum is σ = 62826720. Its totient is φ = 28271952.

The previous prime is 44763947. The next prime is 44763991. The reversal of 44763981 is 18936744.

44763981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 44763981 - 2⁹ = 44763469 is a prime.

It is a super-2 number, since 2×44763981² = 4007627989936722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44763931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392610 + ... + 392723.

It is an arithmetic number, because the mean of its divisors is an integer number (7853340).

Almost surely, 2^44763981 is an apocalyptic number.

44763981 is the 4232-nd centered pentagonal number.

It is an amenable number.

44763981 is a deficient number, since it is larger than the sum of its proper divisors (18062739).

44763981 is a wasteful number, since it uses less digits than its factorization.

44763981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785355.

The product of its digits is 145152, while the sum is 42.

The square root of 44763981 is about 6690.5889875257. The cubic root of 44763981 is about 355.0663923963.

The spelling of 44763981 in words is "forty-four million, seven hundred sixty-three thousand, nine hundred eighty-one".