44354781 has 12 divisors (see below), whose sum is σ = 64350780. Its totient is φ = 29439360.

The previous prime is 44354777. The next prime is 44354789. The reversal of 44354781 is 18745344.

It can be written as a sum of positive squares in 2 ways, for example, as 33524100 + 10830681 = 5790^2 + 3291^2 .

It is not a de Polignac number, because 44354781 - 2² = 44354777 is a prime.

It is a super-2 number, since 2×44354781² = 3934693195115922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44354789) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8700 + ... + 12821.

It is an arithmetic number, because the mean of its divisors is an integer number (5362565).

Almost surely, 2^44354781 is an apocalyptic number.

It is an amenable number.

44354781 is a deficient number, since it is larger than the sum of its proper divisors (19995999).

44354781 is a wasteful number, since it uses less digits than its factorization.

44354781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21756 (or 21753 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 44354781 is about 6659.9385132297. The cubic root of 44354781 is about 353.9811586257.

It can be divided in two parts, 4435 and 4781, that added together give a square (9216 = 96²).

The spelling of 44354781 in words is "forty-four million, three hundred fifty-four thousand, seven hundred eighty-one".