44721566 has 12 divisors (see below), whose sum is σ = 67650216. Its totient is φ = 22173060.

The previous prime is 44721557. The next prime is 44721569. The reversal of 44721566 is 66512744.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44721569) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 33671 + ... + 34973.

It is an arithmetic number, because the mean of its divisors is an integer number (5637518).

Almost surely, 2^44721566 is an apocalyptic number.

44721566 is a deficient number, since it is larger than the sum of its proper divisors (22928650).

44721566 is a wasteful number, since it uses less digits than its factorization.

44721566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1567 (or 1436 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 44721566 is about 6687.4184854845. The cubic root of 44721566 is about 354.9542121730.

The spelling of 44721566 in words is "forty-four million, seven hundred twenty-one thousand, five hundred sixty-six".