44890213 has 8 divisors (see below), whose sum is σ = 46376568. Its totient is φ = 43418304.

The previous prime is 44890207. The next prime is 44890229. The reversal of 44890213 is 31209844.

It can be written as a sum of positive squares in 4 ways, for example, as 33721249 + 11168964 = 5807^2 + 3342^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44890213 - 2⁹ = 44889701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44890243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2895 + ... + 9907.

It is an arithmetic number, because the mean of its divisors is an integer number (5797071).

Almost surely, 2^44890213 is an apocalyptic number.

It is an amenable number.

44890213 is a deficient number, since it is larger than the sum of its proper divisors (1486355).

44890213 is a wasteful number, since it uses less digits than its factorization.

44890213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7223.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 44890213 is about 6700.0158955035. The cubic root of 44890213 is about 355.3998351557.

The spelling of 44890213 in words is "forty-four million, eight hundred ninety thousand, two hundred thirteen".