523304212 has 6 divisors (see below), whose sum is σ = 915782378. Its totient is φ = 261652104.

The previous prime is 523304189. The next prime is 523304219. The reversal of 523304212 is 212403325.

It can be written as a sum of positive squares in only one way, i.e., 362673936 + 160630276 = 19044^2 + 12674^2 .

It is a super-4 number, since 4×523304212⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523304219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65413023 + ... + 65413030.

Almost surely, 2^523304212 is an apocalyptic number.

It is an amenable number.

523304212 is a deficient number, since it is larger than the sum of its proper divisors (392478166).

523304212 is a wasteful number, since it uses less digits than its factorization.

523304212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130826057 (or 130826055 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 523304212 is about 22875.8434161453. The cubic root of 523304212 is about 805.8448042516.

Adding to 523304212 its reverse (212403325), we get a palindrome (735707537).

The spelling of 523304212 in words is "five hundred twenty-three million, three hundred four thousand, two hundred twelve".