44660521 has 8 divisors (see below), whose sum is σ = 45839304. Its totient is φ = 43486080.

The previous prime is 44660509. The next prime is 44660527. The reversal of 44660521 is 12506644.

It can be written as a sum of positive squares in 4 ways, for example, as 291600 + 44368921 = 540^2 + 6661^2 .

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 44660521 - 2⁵ = 44660489 is a prime.

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 44660521.

It is not an unprimeable number, because it can be changed into a prime (44660527) 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, 34335 + ... + 35611.

It is an arithmetic number, because the mean of its divisors is an integer number (5729913).

Almost surely, 2^44660521 is an apocalyptic number.

44660521 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

44660521 is a deficient number, since it is larger than the sum of its proper divisors (1178783).

44660521 is a wasteful number, since it uses less digits than its factorization.

44660521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 44660521 is about 6682.8527591142. The cubic root of 44660521 is about 354.7926343010.

The spelling of 44660521 in words is "forty-four million, six hundred sixty thousand, five hundred twenty-one".