523140422 has 64 divisors (see below), whose sum is σ = 983508480. Its totient is φ = 203613696.

The previous prime is 523140419. The next prime is 523140437. The reversal of 523140422 is 224041325.

It is a happy number.

It is a super-2 number, since 2×523140422² = 547351802260676168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 844829 + ... + 845447.

It is an arithmetic number, because the mean of its divisors is an integer number (15367320).

Almost surely, 2^523140422 is an apocalyptic number.

523140422 is a deficient number, since it is larger than the sum of its proper divisors (460368058).

523140422 is a wasteful number, since it uses less digits than its factorization.

523140422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 765.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 523140422 is about 22872.2631586820. The cubic root of 523140422 is about 805.7607211693.

Adding to 523140422 its reverse (224041325), we get a palindrome (747181747).

The spelling of 523140422 in words is "five hundred twenty-three million, one hundred forty thousand, four hundred twenty-two".