44457400520 has 64 divisors (see below), whose sum is σ = 107793005040. Its totient is φ = 16404480000.

The previous prime is 44457400489. The next prime is 44457400523. The reversal of 44457400520 is 2500475444.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 19027995364 + 25429405156 = 137942^2 + 159466^2 .

It is not an unprimeable number, because it can be changed into a prime (44457400523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 805820 + ... + 859220.

Almost surely, 2^44457400520 is an apocalyptic number.

44457400520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44457400520 is an abundant number, since it is smaller than the sum of its proper divisors (63335604520).

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

44457400520 is a wasteful number, since it uses less digits than its factorization.

44457400520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55026 (or 55022 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 35.

Adding to 44457400520 its reverse (2500475444), we get a palindrome (46957875964).

The spelling of 44457400520 in words is "forty-four billion, four hundred fifty-seven million, four hundred thousand, five hundred twenty".