44521386 has 64 divisors (see below), whose sum is σ = 111191808. Its totient is φ = 11570688.

The previous prime is 44521369. The next prime is 44521387. The reversal of 44521386 is 68312544.

It is a super-2 number, since 2×44521386² = 3964307622721992, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (44521387) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39300 + ... + 40416.

It is an arithmetic number, because the mean of its divisors is an integer number (1737372).

Almost surely, 2^44521386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44521386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55595904).

44521386 is an abundant number, since it is smaller than the sum of its proper divisors (66670422).

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

44521386 is a wasteful number, since it uses less digits than its factorization.

44521386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215.

The product of its digits is 23040, while the sum is 33.

The square root of 44521386 is about 6672.4347879916. The cubic root of 44521386 is about 354.4238117274.

The spelling of 44521386 in words is "forty-four million, five hundred twenty-one thousand, three hundred eighty-six".