44945491 has 4 divisors (see below), whose sum is σ = 46160272. Its totient is φ = 43730712.

The previous prime is 44945479. The next prime is 44945503. The reversal of 44945491 is 19454944.

44945491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (44945479) and next prime (44945503).

It is a cyclic number.

It is not a de Polignac number, because 44945491 - 2¹⁵ = 44912723 is a prime.

It is a super-2 number, since 2×44945491² = 4040194322462162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44945291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607335 + ... + 607408.

It is an arithmetic number, because the mean of its divisors is an integer number (11540068).

Almost surely, 2^44945491 is an apocalyptic number.

44945491 is a deficient number, since it is larger than the sum of its proper divisors (1214781).

44945491 is a wasteful number, since it uses less digits than its factorization.

44945491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214780.

The product of its digits is 103680, while the sum is 40.

The square root of 44945491 is about 6704.1398404270. The cubic root of 44945491 is about 355.5456556090.

The spelling of 44945491 in words is "forty-four million, nine hundred forty-five thousand, four hundred ninety-one".