16466738 has 4 divisors (see below), whose sum is σ = 24700110. Its totient is φ = 8233368.

The previous prime is 16466731. The next prime is 16466741. The reversal of 16466738 is 83766461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13667809 + 2798929 = 3697^2 + 1673^2 .

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 16466695 and 16466704.

It is not an unprimeable number, because it can be changed into a prime (16466731) by changing a digit.

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 as a sum of consecutive naturals, namely, 4116683 + ... + 4116686.

Almost surely, 2^16466738 is an apocalyptic number.

16466738 is a deficient number, since it is larger than the sum of its proper divisors (8233372).

16466738 is an equidigital number, since it uses as much as digits as its factorization.

16466738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8233371.

The product of its digits is 145152, while the sum is 41.

The square root of 16466738 is about 4057.9228676750. The cubic root of 16466738 is about 254.4109844716.

The spelling of 16466738 in words is "sixteen million, four hundred sixty-six thousand, seven hundred thirty-eight".