44688213 has 16 divisors (see below), whose sum is σ = 66313600. Its totient is φ = 29743200.

The previous prime is 44688199. The next prime is 44688233. The reversal of 44688213 is 31288644.

It is not a de Polignac number, because 44688213 - 2⁴ = 44688197 is a prime.

It is a super-2 number, since 2×44688213² = 3994072762266738, 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 (44688233) 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, 23913 + ... + 25713.

It is an arithmetic number, because the mean of its divisors is an integer number (4144600).

Almost surely, 2^44688213 is an apocalyptic number.

It is an amenable number.

44688213 is a deficient number, since it is larger than the sum of its proper divisors (21625387).

44688213 is a wasteful number, since it uses less digits than its factorization.

44688213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2729 (or 2723 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 44688213 is about 6684.9243077241. The cubic root of 44688213 is about 354.8659495202.

The spelling of 44688213 in words is "forty-four million, six hundred eighty-eight thousand, two hundred thirteen".