44213399 has 16 divisors (see below), whose sum is σ = 47738880. Its totient is φ = 40824000.

The previous prime is 44213387. The next prime is 44213419. The reversal of 44213399 is 99331244.

It is a cyclic number.

It is not a de Polignac number, because 44213399 - 2¹² = 44209303 is a prime.

It is a super-2 number, since 2×44213399² = 3909649302266402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44213329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176024 + ... + 176274.

It is an arithmetic number, because the mean of its divisors is an integer number (2983680).

Almost surely, 2^44213399 is an apocalyptic number.

44213399 is a deficient number, since it is larger than the sum of its proper divisors (3525481).

44213399 is a wasteful number, since it uses less digits than its factorization.

44213399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470.

The product of its digits is 23328, while the sum is 35.

The square root of 44213399 is about 6649.3156790756. The cubic root of 44213399 is about 353.6046502966.

The spelling of 44213399 in words is "forty-four million, two hundred thirteen thousand, three hundred ninety-nine".