523020412 has 12 divisors (see below), whose sum is σ = 916642440. Its totient is φ = 261122576.

The previous prime is 523020403. The next prime is 523020413. The reversal of 523020412 is 214020325.

It is a self number, because there is not a number n which added to its sum of digits gives 523020412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523020413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93862 + ... + 99277.

It is an arithmetic number, because the mean of its divisors is an integer number (76386870).

Almost surely, 2^523020412 is an apocalyptic number.

It is an amenable number.

523020412 is a deficient number, since it is larger than the sum of its proper divisors (393622028).

523020412 is a wasteful number, since it uses less digits than its factorization.

523020412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193820 (or 193818 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 523020412 is about 22869.6395249247. The cubic root of 523020412 is about 805.6991018058.

Adding to 523020412 its reverse (214020325), we get a palindrome (737040737).

The spelling of 523020412 in words is "five hundred twenty-three million, twenty thousand, four hundred twelve".