16745474 has 4 divisors (see below), whose sum is σ = 25118214. Its totient is φ = 8372736.

The previous prime is 16745471. The next prime is 16745483. The reversal of 16745474 is 47454761.

It is a happy number.

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., 16459249 + 286225 = 4057^2 + 535^2 .

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16745471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4186367 + ... + 4186370.

Almost surely, 2^16745474 is an apocalyptic number.

16745474 is a deficient number, since it is larger than the sum of its proper divisors (8372740).

16745474 is an equidigital number, since it uses as much as digits as its factorization.

16745474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8372739.

The product of its digits is 94080, while the sum is 38.

The square root of 16745474 is about 4092.1234096738. The cubic root of 16745474 is about 255.8384499136.

The spelling of 16745474 in words is "sixteen million, seven hundred forty-five thousand, four hundred seventy-four".