631323342 has 32 divisors (see below), whose sum is σ = 1510860960. Its totient is φ = 194253120.

The previous prime is 631323311. The next prime is 631323349. The reversal of 631323342 is 243323136.

It is a happy number.

631323342 is a `hidden beast` number, since 6 + 313 + 2 + 3 + 342 = 666.

631323342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631323349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448959 + ... + 450362.

It is an arithmetic number, because the mean of its divisors is an integer number (47214405).

Almost surely, 2^631323342 is an apocalyptic number.

631323342 is an abundant number, since it is smaller than the sum of its proper divisors (879537618).

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

631323342 is a wasteful number, since it uses less digits than its factorization.

631323342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899345 (or 899339 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

The square root of 631323342 is about 25126.1485707619. The cubic root of 631323342 is about 857.8617068909.

Adding to 631323342 its reverse (243323136), we get a palindrome (874646478).

The spelling of 631323342 in words is "six hundred thirty-one million, three hundred twenty-three thousand, three hundred forty-two".