40028805184 has 63 divisors (see below), whose sum is σ = 80621590471. Its totient is φ = 19719096320.

The previous prime is 40028805169. The next prime is 40028805191. The reversal of 40028805184 is 48150882004.

The square root of 40028805184 is 200072.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 919787584 + 39109017600 = 30328^2 + 197760^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 142451124 + ... + 142451404.

Almost surely, 2^40028805184 is an apocalyptic number.

40028805184 is the 200072-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40028805184

40028805184 is an abundant number, since it is smaller than the sum of its proper divisors (40592785287).

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

40028805184 is an frugal number, since it uses more digits than its factorization.

40028805184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 40.

The spelling of 40028805184 in words is "forty billion, twenty-eight million, eight hundred five thousand, one hundred eighty-four".