16738668 has 18 divisors (see below), whose sum is σ = 42311724. Its totient is φ = 5579544.

The previous prime is 16738663. The next prime is 16738669. The reversal of 16738668 is 86683761.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (16738663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 232446 + ... + 232517.

Almost surely, 2^16738668 is an apocalyptic number.

16738668 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16738668 is an abundant number, since it is smaller than the sum of its proper divisors (25573056).

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

16738668 is a wasteful number, since it uses less digits than its factorization.

16738668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464973 (or 464968 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 16738668 is about 4091.2917275599. The cubic root of 16738668 is about 255.8037843786.

The spelling of 16738668 in words is "sixteen million, seven hundred thirty-eight thousand, six hundred sixty-eight".