3216342400 has 48 divisors (see below), whose sum is σ = 7945378740. Its totient is φ = 1286535680.

The previous prime is 3216342397. The next prime is 3216342427. The reversal of 3216342400 is 42436123.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 499354 + ... + 505753.

Almost surely, 2^3216342400 is an apocalyptic number.

It is an amenable number.

3216342400 is an abundant number, since it is smaller than the sum of its proper divisors (4729036340).

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

3216342400 is a wasteful number, since it uses less digits than its factorization.

3216342400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005131 (or 1005114 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 3216342400 is about 56712.8063139182. The cubic root of 3216342400 is about 1476.1169209406.

Adding to 3216342400 its reverse (42436123), we get a palindrome (3258778523).

The spelling of 3216342400 in words is "three billion, two hundred sixteen million, three hundred forty-two thousand, four hundred".