420316732 has 18 divisors (see below), whose sum is σ = 808502744. Its totient is φ = 191052840.

The previous prime is 420316711. The next prime is 420316769. The reversal of 420316732 is 237613024.

It is a self number, because there is not a number n which added to its sum of digits gives 420316732.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 433728 + ... + 434695.

Almost surely, 2^420316732 is an apocalyptic number.

It is an amenable number.

420316732 is a deficient number, since it is larger than the sum of its proper divisors (388186012).

420316732 is a wasteful number, since it uses less digits than its factorization.

420316732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868449 (or 868436 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 420316732 is about 20501.6275451487. The cubic root of 420316732 is about 749.0754426525.

Adding to 420316732 its reverse (237613024), we get a palindrome (657929756).

The spelling of 420316732 in words is "four hundred twenty million, three hundred sixteen thousand, seven hundred thirty-two".