44646881 has 2 divisors, whose sum is σ = 44646882. Its totient is φ = 44646880.

The previous prime is 44646871. The next prime is 44646907. The reversal of 44646881 is 18864644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38688400 + 5958481 = 6220^2 + 2441^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44646881 is a prime.

It is a super-2 number, since 2×44646881² = 3986687966056322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (44646821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22323440 + 22323441.

It is an arithmetic number, because the mean of its divisors is an integer number (22323441).

Almost surely, 2^44646881 is an apocalyptic number.

It is an amenable number.

44646881 is a deficient number, since it is larger than the sum of its proper divisors (1).

44646881 is an equidigital number, since it uses as much as digits as its factorization.

44646881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 41.

The square root of 44646881 is about 6681.8321589217. The cubic root of 44646881 is about 354.7565109406.

The spelling of 44646881 in words is "forty-four million, six hundred forty-six thousand, eight hundred eighty-one".