44440491 has 4 divisors (see below), whose sum is σ = 59253992. Its totient is φ = 29626992.

The previous prime is 44440469. The next prime is 44440493. The reversal of 44440491 is 19404444.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 44440491 - 2¹⁰ = 44439467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44440493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7406746 + ... + 7406751.

It is an arithmetic number, because the mean of its divisors is an integer number (14813498).

Almost surely, 2^44440491 is an apocalyptic number.

44440491 is a deficient number, since it is larger than the sum of its proper divisors (14813501).

44440491 is a wasteful number, since it uses less digits than its factorization.

44440491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14813500.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 44440491 is about 6666.3701517393. The cubic root of 44440491 is about 354.2090198454.

The spelling of 44440491 in words is "forty-four million, four hundred forty thousand, four hundred ninety-one".