44361881 has 4 divisors (see below), whose sum is σ = 44969652. Its totient is φ = 43754112.

The previous prime is 44361847. The next prime is 44361913. The reversal of 44361881 is 18816344.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24255625 + 20106256 = 4925^2 + 4484^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44361881 is a prime.

It is a super-2 number, since 2×44361881² = 3935952971716322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44361281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303776 + ... + 303921.

It is an arithmetic number, because the mean of its divisors is an integer number (11242413).

Almost surely, 2^44361881 is an apocalyptic number.

It is an amenable number.

44361881 is a deficient number, since it is larger than the sum of its proper divisors (607771).

44361881 is an equidigital number, since it uses as much as digits as its factorization.

44361881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607770.

The product of its digits is 18432, while the sum is 35.

The square root of 44361881 is about 6660.4715298543. The cubic root of 44361881 is about 354.0000452190. Note that the first 4 decimals are identical.

The spelling of 44361881 in words is "forty-four million, three hundred sixty-one thousand, eight hundred eighty-one".