44401987 has 12 divisors (see below), whose sum is σ = 53434080. Its totient is φ = 36745296.

The previous prime is 44401963. The next prime is 44401991. The reversal of 44401987 is 78910444.

It is not a de Polignac number, because 44401987 - 2⁷ = 44401859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44401927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14203 + ... + 17044.

It is an arithmetic number, because the mean of its divisors is an integer number (4452840).

Almost surely, 2^44401987 is an apocalyptic number.

44401987 is a deficient number, since it is larger than the sum of its proper divisors (9032093).

44401987 is a wasteful number, since it uses less digits than its factorization.

44401987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31290 (or 31283 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 44401987 is about 6663.4815974834. The cubic root of 44401987 is about 354.1066927067.

The spelling of 44401987 in words is "forty-four million, four hundred one thousand, nine hundred eighty-seven".