44985621 has 8 divisors (see below), whose sum is σ = 63509184. Its totient is φ = 28226240.

The previous prime is 44985613. The next prime is 44985649. The reversal of 44985621 is 12658944.

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

It is a cyclic number.

It is not a de Polignac number, because 44985621 - 2³ = 44985613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 44985621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44985691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440985 + ... + 441086.

It is an arithmetic number, because the mean of its divisors is an integer number (7938648).

Almost surely, 2^44985621 is an apocalyptic number.

It is an amenable number.

44985621 is a deficient number, since it is larger than the sum of its proper divisors (18523563).

44985621 is a wasteful number, since it uses less digits than its factorization.

44985621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882091.

The product of its digits is 69120, while the sum is 39.

The square root of 44985621 is about 6707.1320994893. The cubic root of 44985621 is about 355.6514415473.

The spelling of 44985621 in words is "forty-four million, nine hundred eighty-five thousand, six hundred twenty-one".