523272740 has 12 divisors (see below), whose sum is σ = 1098872796. Its totient is φ = 209309088.

The previous prime is 523272731. The next prime is 523272751. The reversal of 523272740 is 47272325.

It can be written as a sum of positive squares in 2 ways, for example, as 247181284 + 276091456 = 15722^2 + 16616^2 .

It is a junction number, because it is equal to n+sod(n) for n = 523272697 and 523272706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13081799 + ... + 13081838.

It is an arithmetic number, because the mean of its divisors is an integer number (91572733).

Almost surely, 2^523272740 is an apocalyptic number.

It is an amenable number.

523272740 is an abundant number, since it is smaller than the sum of its proper divisors (575600056).

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

523272740 is a wasteful number, since it uses less digits than its factorization.

523272740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26163646 (or 26163644 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 523272740 is about 22875.1555185970. The cubic root of 523272740 is about 805.8286491768.

The spelling of 523272740 in words is "five hundred twenty-three million, two hundred seventy-two thousand, seven hundred forty".