44140491 has 8 divisors (see below), whose sum is σ = 65393360. Its totient is φ = 29426976.

The previous prime is 44140463. The next prime is 44140511. The reversal of 44140491 is 19404144.

44140491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44140491 - 2¹⁸ = 43878347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1634833 = 44140491 / (4 + 4 + 1 + 4 + 0 + 4 + 9 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44140391) 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 7 ways as a sum of consecutive naturals, for example, 817390 + ... + 817443.

It is an arithmetic number, because the mean of its divisors is an integer number (8174170).

Almost surely, 2^44140491 is an apocalyptic number.

44140491 is a deficient number, since it is larger than the sum of its proper divisors (21252869).

44140491 is a wasteful number, since it uses less digits than its factorization.

44140491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634842 (or 1634836 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 44140491 is about 6643.8310484238. The cubic root of 44140491 is about 353.4101783931.

The spelling of 44140491 in words is "forty-four million, one hundred forty thousand, four hundred ninety-one".