44649387 has 20 divisors (see below), whose sum is σ = 67142416. Its totient is φ = 29568240.

The previous prime is 44649379. The next prime is 44649401. The reversal of 44649387 is 78394644.

It is not a de Polignac number, because 44649387 - 2³ = 44649379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44649307) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10962 + ... + 14472.

Almost surely, 2^44649387 is an apocalyptic number.

44649387 is a deficient number, since it is larger than the sum of its proper divisors (22493029).

44649387 is a wasteful number, since it uses less digits than its factorization.

44649387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680 (or 3671 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 44649387 is about 6682.0196797076. The cubic root of 44649387 is about 354.7631482328.

The spelling of 44649387 in words is "forty-four million, six hundred forty-nine thousand, three hundred eighty-seven".