44340291 has 10 divisors (see below), whose sum is σ = 66236852. Its totient is φ = 29560140.

The previous prime is 44340287. The next prime is 44340299. The reversal of 44340291 is 19204344.

It is not a de Polignac number, because 44340291 - 2² = 44340287 is a prime.

It is a super-2 number, since 2×44340291² = 3932122811929362, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44340299) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 273625 + ... + 273786.

Almost surely, 2^44340291 is an apocalyptic number.

44340291 is a deficient number, since it is larger than the sum of its proper divisors (21896561).

44340291 is an equidigital number, since it uses as much as digits as its factorization.

44340291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547423 (or 547414 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 44340291 is about 6658.8505764884. The cubic root of 44340291 is about 353.9426077598.

The spelling of 44340291 in words is "forty-four million, three hundred forty thousand, two hundred ninety-one".