44872081 has 4 divisors (see below), whose sum is σ = 45966564. Its totient is φ = 43777600.

The previous prime is 44872067. The next prime is 44872117. The reversal of 44872081 is 18027844.

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 10297681 + 34574400 = 3209^2 + 5880^2 .

It is a cyclic number.

It is not a de Polignac number, because 44872081 - 2⁹ = 44871569 is a prime.

It is a super-2 number, since 2×44872081² = 4027007306541122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44872001) 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, 547180 + ... + 547261.

It is an arithmetic number, because the mean of its divisors is an integer number (11491641).

Almost surely, 2^44872081 is an apocalyptic number.

44872081 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

44872081 is a deficient number, since it is larger than the sum of its proper divisors (1094483).

44872081 is a wasteful number, since it uses less digits than its factorization.

44872081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094482.

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 44872081 is about 6698.6626277191. The cubic root of 44872081 is about 355.3519778226.

The spelling of 44872081 in words is "forty-four million, eight hundred seventy-two thousand, eighty-one".