524212816 has 40 divisors (see below), whose sum is σ = 1112506920. Its totient is φ = 238178304.

The previous prime is 524212813. The next prime is 524212841. The reversal of 524212816 is 618212425.

It can be written as a sum of positive squares in 4 ways, for example, as 75620416 + 448592400 = 8696^2 + 21180^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (524212813) 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 7 ways as a sum of consecutive naturals, for example, 25341 + ... + 41116.

It is an arithmetic number, because the mean of its divisors is an integer number (27812673).

Almost surely, 2^524212816 is an apocalyptic number.

It is an amenable number.

524212816 is an abundant number, since it is smaller than the sum of its proper divisors (588294104).

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

524212816 is a wasteful number, since it uses less digits than its factorization.

524212816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66511 (or 66505 counting only the distinct ones).

The product of its digits is 7680, while the sum is 31.

The square root of 524212816 is about 22895.6942677002. The cubic root of 524212816 is about 806.3109260210.

The spelling of 524212816 in words is "five hundred twenty-four million, two hundred twelve thousand, eight hundred sixteen".