44428520 has 16 divisors (see below), whose sum is σ = 99964260. Its totient is φ = 17771392.

The previous prime is 44428499. The next prime is 44428529. The reversal of 44428520 is 2582444.

It can be written as a sum of positive squares in 2 ways, for example, as 43533604 + 894916 = 6598^2 + 946^2 .

It is not an unprimeable number, because it can be changed into a prime (44428529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555317 + ... + 555396.

Almost surely, 2^44428520 is an apocalyptic number.

44428520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44428520 is an abundant number, since it is smaller than the sum of its proper divisors (55535740).

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

44428520 is a wasteful number, since it uses less digits than its factorization.

44428520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110724 (or 1110720 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

The square root of 44428520 is about 6665.4722263318. The cubic root of 44428520 is about 354.1772123888.

The spelling of 44428520 in words is "forty-four million, four hundred twenty-eight thousand, five hundred twenty".