44881387 has 2 divisors, whose sum is σ = 44881388. Its totient is φ = 44881386.

The previous prime is 44881373. The next prime is 44881393. The reversal of 44881387 is 78318844.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 44881387 - 2¹¹ = 44879339 is a prime.

It is not a weakly prime, because it can be changed into another prime (44881307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22440693 + 22440694.

It is an arithmetic number, because the mean of its divisors is an integer number (22440694).

Almost surely, 2^44881387 is an apocalyptic number.

44881387 is a deficient number, since it is larger than the sum of its proper divisors (1).

44881387 is an equidigital number, since it uses as much as digits as its factorization.

44881387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172032, while the sum is 43.

The square root of 44881387 is about 6699.3572079715. The cubic root of 44881387 is about 355.3765415517.

It can be divided in two parts, 448813 and 87, that added together give a square (448900 = 670²).

The spelling of 44881387 in words is "forty-four million, eight hundred eighty-one thousand, three hundred eighty-seven".