16814664 has 48 divisors (see below), whose sum is σ = 47115900. Its totient is φ = 5410944.

The previous prime is 16814663. The next prime is 16814669. The reversal of 16814664 is 46641861.

It can be written as a sum of positive squares in 2 ways, for example, as 16402500 + 412164 = 4050^2 + 642^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (16814663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1939 + ... + 6114.

Almost surely, 2^16814664 is an apocalyptic number.

It is an amenable number.

16814664 is an abundant number, since it is smaller than the sum of its proper divisors (30301236).

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

16814664 is a wasteful number, since it uses less digits than its factorization.

16814664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8094 (or 8087 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 16814664 is about 4100.5687410407. The cubic root of 16814664 is about 256.1903288384.

The spelling of 16814664 in words is "sixteen million, eight hundred fourteen thousand, six hundred sixty-four".