32304400646 has 16 divisors (see below), whose sum is σ = 55477350144. Its totient is φ = 13820148744.

The previous prime is 32304400619. The next prime is 32304400669. The reversal of 32304400646 is 64600440323.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2041370 + ... + 2057133.

It is an arithmetic number, because the mean of its divisors is an integer number (3467334384).

Almost surely, 2^32304400646 is an apocalyptic number.

32304400646 is a deficient number, since it is larger than the sum of its proper divisors (23172949498).

32304400646 is a wasteful number, since it uses less digits than its factorization.

32304400646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4099075.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 32304400646 its reverse (64600440323), we get a palindrome (96904840969).

The spelling of 32304400646 in words is "thirty-two billion, three hundred four million, four hundred thousand, six hundred forty-six".