44056781 has 4 divisors (see below), whose sum is σ = 44327232. Its totient is φ = 43786332.

The previous prime is 44056777. The next prime is 44056783. The reversal of 44056781 is 18765044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44056781 - 2² = 44056777 is a prime.

It is a super-2 number, since 2×44056781² = 3881999904163922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44056783) 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, 134981 + ... + 135306.

It is an arithmetic number, because the mean of its divisors is an integer number (11081808).

Almost surely, 2^44056781 is an apocalyptic number.

It is an amenable number.

44056781 is a deficient number, since it is larger than the sum of its proper divisors (270451).

44056781 is a wasteful number, since it uses less digits than its factorization.

44056781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270450.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 44056781 is about 6637.5282296951. The cubic root of 44056781 is about 353.1866293980.

The spelling of 44056781 in words is "forty-four million, fifty-six thousand, seven hundred eighty-one".