44666644 has 72 divisors (see below), whose sum is σ = 94762080. Its totient is φ = 18216000.

The previous prime is 44666623. The next prime is 44666647.

It is a happy number.

44666644 is nontrivially palindromic in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 44666597 and 44666606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44666647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 442194 + ... + 442294.

It is an arithmetic number, because the mean of its divisors is an integer number (1316140).

Almost surely, 2^44666644 is an apocalyptic number.

44666644 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

44666644 is an abundant number, since it is smaller than the sum of its proper divisors (50095436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

44666644 is a wasteful number, since it uses less digits than its factorization.

44666644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 156 counting only the distinct ones).

The product of its digits is 331776, while the sum is 40.

The square root of 44666644 is about 6683.3108561551. The cubic root of 44666644 is about 354.8088476962.

The spelling of 44666644 in words is "forty-four million, six hundred sixty-six thousand, six hundred forty-four".