44969681 has 2 divisors, whose sum is σ = 44969682. Its totient is φ = 44969680.

The previous prime is 44969677. The next prime is 44969737. The reversal of 44969681 is 18696944.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39753025 + 5216656 = 6305^2 + 2284^2 .

It is a cyclic number.

It is not a de Polignac number, because 44969681 - 2² = 44969677 is a prime.

It is a super-2 number, since 2×44969681² = 4044544418483522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44969651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22484840 + 22484841.

It is an arithmetic number, because the mean of its divisors is an integer number (22484841).

Almost surely, 2^44969681 is an apocalyptic number.

It is an amenable number.

44969681 is a deficient number, since it is larger than the sum of its proper divisors (1).

44969681 is an equidigital number, since it uses as much as digits as its factorization.

44969681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 47.

The square root of 44969681 is about 6705.9437068917. The cubic root of 44969681 is about 355.6094299477.

The spelling of 44969681 in words is "forty-four million, nine hundred sixty-nine thousand, six hundred eighty-one".