44009397 has 6 divisors (see below), whose sum is σ = 63569142. Its totient is φ = 29339592.

The previous prime is 44009393. The next prime is 44009401. The reversal of 44009397 is 79390044.

It is an interprime number because it is at equal distance from previous prime (44009393) and next prime (44009401).

It can be written as a sum of positive squares in only one way, i.e., 30569841 + 13439556 = 5529^2 + 3666^2 .

It is not a de Polignac number, because 44009397 - 2² = 44009393 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44009393) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2444958 + ... + 2444975.

It is an arithmetic number, because the mean of its divisors is an integer number (10594857).

Almost surely, 2^44009397 is an apocalyptic number.

It is an amenable number.

44009397 is a deficient number, since it is larger than the sum of its proper divisors (19559745).

44009397 is a wasteful number, since it uses less digits than its factorization.

44009397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4889939 (or 4889936 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 44009397 is about 6633.9578684221. The cubic root of 44009397 is about 353.0599640795.

The spelling of 44009397 in words is "forty-four million, nine thousand, three hundred ninety-seven".