520872412 has 24 divisors (see below), whose sum is σ = 932752800. Its totient is φ = 254429760.

The previous prime is 520872409. The next prime is 520872413. The reversal of 520872412 is 214278025.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520872413) 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, 29193 + ... + 43519.

It is an arithmetic number, because the mean of its divisors is an integer number (38864700).

Almost surely, 2^520872412 is an apocalyptic number.

It is an amenable number.

520872412 is a deficient number, since it is larger than the sum of its proper divisors (411880388).

520872412 is a wasteful number, since it uses less digits than its factorization.

520872412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14541 (or 14539 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 520872412 is about 22822.6293840127. The cubic root of 520872412 is about 804.5946093549.

It can be divided in two parts, 520872 and 412, that added together give a square (521284 = 722²).

The spelling of 520872412 in words is "five hundred twenty million, eight hundred seventy-two thousand, four hundred twelve".