44345987 has 16 divisors (see below), whose sum is σ = 51781632. Its totient is φ = 37195200.

The previous prime is 44345971. The next prime is 44345999. The reversal of 44345987 is 78954344.

It is not a de Polignac number, because 44345987 - 2⁴ = 44345971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44345087) 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 15 ways as a sum of consecutive naturals, for example, 73487 + ... + 74087.

It is an arithmetic number, because the mean of its divisors is an integer number (3236352).

Almost surely, 2^44345987 is an apocalyptic number.

44345987 is a deficient number, since it is larger than the sum of its proper divisors (7435645).

44345987 is a wasteful number, since it uses less digits than its factorization.

44345987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818.

The product of its digits is 483840, while the sum is 44.

The square root of 44345987 is about 6659.2782641965. The cubic root of 44345987 is about 353.9577630564.

The spelling of 44345987 in words is "forty-four million, three hundred forty-five thousand, nine hundred eighty-seven".