44415666 has 24 divisors (see below), whose sum is σ = 96602220. Its totient is φ = 14748576.

The previous prime is 44415641. The next prime is 44415671. The reversal of 44415666 is 66651444.

It can be written as a sum of positive squares in 2 ways, for example, as 31304025 + 13111641 = 5595^2 + 3621^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 44415666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 256 + ... + 9428.

Almost surely, 2^44415666 is an apocalyptic number.

44415666 is an abundant number, since it is smaller than the sum of its proper divisors (52186554).

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

44415666 is a wasteful number, since it uses less digits than its factorization.

44415666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9450 (or 9447 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 44415666 is about 6664.5079338238. The cubic root of 44415666 is about 354.1430524017.

It can be divided in two parts, 444 and 15666, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 44415666 in words is "forty-four million, four hundred fifteen thousand, six hundred sixty-six".