44666663 has 4 divisors (see below), whose sum is σ = 47017560. Its totient is φ = 42315768.

The previous prime is 44666653. The next prime is 44666669. The reversal of 44666663 is 36666644.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44666663 - 2⁴ = 44666647 is a prime.

It is a super-2 number, since 2×44666663² = 3990221567111138, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44666663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44666669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175420 + ... + 1175457.

It is an arithmetic number, because the mean of its divisors is an integer number (11754390).

Almost surely, 2^44666663 is an apocalyptic number.

44666663 is a deficient number, since it is larger than the sum of its proper divisors (2350897).

44666663 is a wasteful number, since it uses less digits than its factorization.

44666663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2350896.

The product of its digits is 373248, while the sum is 41.

The square root of 44666663 is about 6683.3122776061. The cubic root of 44666663 is about 354.8088980049.

The spelling of 44666663 in words is "forty-four million, six hundred sixty-six thousand, six hundred sixty-three".