16388768 has 24 divisors (see below), whose sum is σ = 35199360. Its totient is φ = 7449280.

The previous prime is 16388753. The next prime is 16388777. The reversal of 16388768 is 86788361.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22928 + ... + 23631.

It is an arithmetic number, because the mean of its divisors is an integer number (1466640).

Almost surely, 2^16388768 is an apocalyptic number.

It is an amenable number.

16388768 is an abundant number, since it is smaller than the sum of its proper divisors (18810592).

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

16388768 is a wasteful number, since it uses less digits than its factorization.

16388768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46580 (or 46572 counting only the distinct ones).

The product of its digits is 387072, while the sum is 47.

The square root of 16388768 is about 4048.3043363858. The cubic root of 16388768 is about 254.0088037125.

The spelling of 16388768 in words is "sixteen million, three hundred eighty-eight thousand, seven hundred sixty-eight".