44381897 has 12 divisors (see below), whose sum is σ = 52213140. Its totient is φ = 37610496.

The previous prime is 44381879. The next prime is 44381903. The reversal of 44381897 is 79818344.

44381897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 18412681 + 25969216 = 4291^2 + 5096^2 .

It is not a de Polignac number, because 44381897 - 2¹⁸ = 44119753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44381807) 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 11 ways as a sum of consecutive naturals, for example, 728 + ... + 9449.

It is an arithmetic number, because the mean of its divisors is an integer number (4351095).

Almost surely, 2^44381897 is an apocalyptic number.

It is an amenable number.

44381897 is a deficient number, since it is larger than the sum of its proper divisors (7831243).

44381897 is a wasteful number, since it uses less digits than its factorization.

44381897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10280 (or 10273 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 44381897 is about 6661.9739567188. The cubic root of 44381897 is about 354.0532786057.

The spelling of 44381897 in words is "forty-four million, three hundred eighty-one thousand, eight hundred ninety-seven".