44072919 has 18 divisors (see below), whose sum is σ = 69976088. Its totient is φ = 26710200.

The previous prime is 44072881. The next prime is 44072933. The reversal of 44072919 is 91927044.

It is not a de Polignac number, because 44072919 - 2⁹ = 44072407 is a prime.

It is a super-2 number, since 2×44072919² = 3884844378361122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44072969) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19147 + ... + 21324.

Almost surely, 2^44072919 is an apocalyptic number.

44072919 is a deficient number, since it is larger than the sum of its proper divisors (25903169).

44072919 is a wasteful number, since it uses less digits than its factorization.

44072919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40499 (or 40485 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 44072919 is about 6638.7437817708. The cubic root of 44072919 is about 353.2297482241.

The spelling of 44072919 in words is "forty-four million, seventy-two thousand, nine hundred nineteen".