631432002 has 32 divisors (see below), whose sum is σ = 1277904960. Its totient is φ = 207979200.

The previous prime is 631432001. The next prime is 631432013. The reversal of 631432002 is 200234136.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 631432002.

It is not an unprimeable number, because it can be changed into a prime (631432001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519948 + ... + 521160.

It is an arithmetic number, because the mean of its divisors is an integer number (39934530).

Almost surely, 2^631432002 is an apocalyptic number.

631432002 is an abundant number, since it is smaller than the sum of its proper divisors (646472958).

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

631432002 is a wasteful number, since it uses less digits than its factorization.

631432002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 631432002 is about 25128.3107669417. The cubic root of 631432002 is about 857.9109209251.

Adding to 631432002 its reverse (200234136), we get a palindrome (831666138).

The spelling of 631432002 in words is "six hundred thirty-one million, four hundred thirty-two thousand, two".