16243684 has 12 divisors (see below), whose sum is σ = 28455084. Its totient is φ = 8113664.

The previous prime is 16243663. The next prime is 16243697. The reversal of 16243684 is 48634261.

It can be written as a sum of positive squares in 2 ways, for example, as 7717284 + 8526400 = 2778^2 + 2920^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5592 + ... + 7984.

It is an arithmetic number, because the mean of its divisors is an integer number (2371257).

Almost surely, 2^16243684 is an apocalyptic number.

It is an amenable number.

16243684 is a deficient number, since it is larger than the sum of its proper divisors (12211400).

16243684 is a wasteful number, since it uses less digits than its factorization.

16243684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4094 (or 4092 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 16243684 is about 4030.3453946281. The cubic root of 16243684 is about 253.2570307292.

The spelling of 16243684 in words is "sixteen million, two hundred forty-three thousand, six hundred eighty-four".