44945217 has 6 divisors (see below), whose sum is σ = 64920882. Its totient is φ = 29963472.

The previous prime is 44945213. The next prime is 44945237. The reversal of 44945217 is 71254944.

It is a happy number.

44945217 is a `hidden beast` number, since 44 + 94 + 521 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 44675856 + 269361 = 6684^2 + 519^2 .

It is not a de Polignac number, because 44945217 - 2² = 44945213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44945213) 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, 2496948 + ... + 2496965.

It is an arithmetic number, because the mean of its divisors is an integer number (10820147).

Almost surely, 2^44945217 is an apocalyptic number.

It is an amenable number.

44945217 is a deficient number, since it is larger than the sum of its proper divisors (19975665).

44945217 is a wasteful number, since it uses less digits than its factorization.

44945217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4993919 (or 4993916 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 44945217 is about 6704.1194052612. The cubic root of 44945217 is about 355.5449331064.

The spelling of 44945217 in words is "forty-four million, nine hundred forty-five thousand, two hundred seventeen".