631340430 has 32 divisors (see below), whose sum is σ = 1731677184. Its totient is φ = 144306336.

The previous prime is 631340419. The next prime is 631340447. The reversal of 631340430 is 34043136.

It is a self number, because there is not a number n which added to its sum of digits gives 631340430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1502982 + ... + 1503401.

It is an arithmetic number, because the mean of its divisors is an integer number (54114912).

Almost surely, 2^631340430 is an apocalyptic number.

631340430 is an abundant number, since it is smaller than the sum of its proper divisors (1100336754).

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

631340430 is a wasteful number, since it uses less digits than its factorization.

631340430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3006400.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 631340430 is about 25126.4886126176. The cubic root of 631340430 is about 857.8694467223.

Adding to 631340430 its reverse (34043136), we get a palindrome (665383566).

The spelling of 631340430 in words is "six hundred thirty-one million, three hundred forty thousand, four hundred thirty".