44669681 has 8 divisors (see below), whose sum is σ = 51697920. Its totient is φ = 37803168.

The previous prime is 44669671. The next prime is 44669683. The reversal of 44669681 is 18696644.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44669681 is a prime.

It is a super-2 number, since 2×44669681² = 3990760801283522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44669683) 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, 39836 + ... + 40941.

It is an arithmetic number, because the mean of its divisors is an integer number (6462240).

Almost surely, 2^44669681 is an apocalyptic number.

It is an amenable number.

44669681 is a deficient number, since it is larger than the sum of its proper divisors (7028239).

44669681 is an equidigital number, since it uses as much as digits as its factorization.

44669681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80863.

The product of its digits is 248832, while the sum is 44.

The square root of 44669681 is about 6683.5380600398. The cubic root of 44669681 is about 354.8168889693.

The spelling of 44669681 in words is "forty-four million, six hundred sixty-nine thousand, six hundred eighty-one".