523019224 has 32 divisors (see below), whose sum is σ = 1206969120. Its totient is φ = 206908416.

The previous prime is 523019209. The next prime is 523019227. The reversal of 523019224 is 422910325.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 523019192 and 523019201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523019227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 358489 + ... + 359944.

It is an arithmetic number, because the mean of its divisors is an integer number (37717785).

Almost surely, 2^523019224 is an apocalyptic number.

It is an amenable number.

523019224 is an abundant number, since it is smaller than the sum of its proper divisors (683949896).

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

523019224 is a wasteful number, since it uses less digits than its factorization.

523019224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718459 (or 718455 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 523019224 is about 22869.6135516104. The cubic root of 523019224 is about 805.6984917778.

Adding to 523019224 its reverse (422910325), we get a palindrome (945929549).

The spelling of 523019224 in words is "five hundred twenty-three million, nineteen thousand, two hundred twenty-four".