44106921 has 12 divisors (see below), whose sum is σ = 64035972. Its totient is φ = 29254176.

The previous prime is 44106913. The next prime is 44106943. The reversal of 44106921 is 12960144.

It can be written as a sum of positive squares in 2 ways, for example, as 19900521 + 24206400 = 4461^2 + 4920^2 .

It is not a de Polignac number, because 44106921 - 2³ = 44106913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44106901) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10666 + ... + 14211.

It is an arithmetic number, because the mean of its divisors is an integer number (5336331).

Almost surely, 2^44106921 is an apocalyptic number.

It is an amenable number.

44106921 is a deficient number, since it is larger than the sum of its proper divisors (19929051).

44106921 is a wasteful number, since it uses less digits than its factorization.

44106921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25080 (or 25077 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 44106921 is about 6641.3041640931. The cubic root of 44106921 is about 353.3205631040.

The spelling of 44106921 in words is "forty-four million, one hundred six thousand, nine hundred twenty-one".