44521164 has 120 divisors (see below), whose sum is σ = 126236880. Its totient is φ = 13630464.

The previous prime is 44521151. The next prime is 44521231. The reversal of 44521164 is 46112544.

44521164 is a `hidden beast` number, since 445 + 211 + 6 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 324904 + ... + 325040.

It is an arithmetic number, because the mean of its divisors is an integer number (1051974).

Almost surely, 2^44521164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44521164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63118440).

44521164 is an abundant number, since it is smaller than the sum of its proper divisors (81715716).

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

44521164 is a wasteful number, since it uses less digits than its factorization.

44521164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 218 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 44521164 is about 6672.4181523643. The cubic root of 44521164 is about 354.4232226306.

It can be divided in two parts, 445 and 21164, that added together give a square (21609 = 147²).

The spelling of 44521164 in words is "forty-four million, five hundred twenty-one thousand, one hundred sixty-four".