16402316 has 24 divisors (see below), whose sum is σ = 32987136. Its totient is φ = 6990480.

The previous prime is 16402283. The next prime is 16402333. The reversal of 16402316 is 61320461.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 16402291 and 16402300.

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 7 ways as a sum of consecutive naturals, for example, 3815 + ... + 6881.

It is an arithmetic number, because the mean of its divisors is an integer number (1374464).

Almost surely, 2^16402316 is an apocalyptic number.

It is an amenable number.

16402316 is an abundant number, since it is smaller than the sum of its proper divisors (16584820).

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

16402316 is a wasteful number, since it uses less digits than its factorization.

16402316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269 (or 3267 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 16402316 is about 4049.9772838869. The cubic root of 16402316 is about 254.0787777223.

Adding to 16402316 its reverse (61320461), we get a palindrome (77722777).

The spelling of 16402316 in words is "sixteen million, four hundred two thousand, three hundred sixteen".