52784740 has 24 divisors (see below), whose sum is σ = 111598200. Its totient is φ = 20971008.

The previous prime is 52784731. The next prime is 52784741. The reversal of 52784740 is 4748725.

52784740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 6843456 + 45941284 = 2616^2 + 6778^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 52784740.

It is not an unprimeable number, because it can be changed into a prime (52784741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5877 + ... + 11836.

It is an arithmetic number, because the mean of its divisors is an integer number (4649925).

Almost surely, 2^52784740 is an apocalyptic number.

It is an amenable number.

52784740 is an abundant number, since it is smaller than the sum of its proper divisors (58813460).

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

52784740 is a wasteful number, since it uses less digits than its factorization.

52784740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17871 (or 17869 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 52784740 is about 7265.3107297624. The cubic root of 52784740 is about 375.1193457173.

The spelling of 52784740 in words is "fifty-two million, seven hundred eighty-four thousand, seven hundred forty".