44445666 has 8 divisors (see below), whose sum is σ = 88891344. Its totient is φ = 14815220.

The previous prime is 44445659. The next prime is 44445671. The reversal of 44445666 is 66654444.

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

44445666 is an admirable number.

It is a plaindrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3703800 + ... + 3703811.

It is an arithmetic number, because the mean of its divisors is an integer number (11111418).

Almost surely, 2^44445666 is an apocalyptic number.

44445666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

44445666 is a wasteful number, since it uses less digits than its factorization.

44445666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7407616.

The product of its digits is 276480, while the sum is 39.

The square root of 44445666 is about 6666.7582827038. The cubic root of 44445666 is about 354.2227682723. Note that the first 3 decimals are identical.

The spelling of 44445666 in words is "forty-four million, four hundred forty-five thousand, six hundred sixty-six".