16680374 has 4 divisors (see below), whose sum is σ = 25020564. Its totient is φ = 8340186.

The previous prime is 16680373. The next prime is 16680403. The reversal of 16680374 is 47308661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47308661 = 359 ⋅131779.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16680371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4170092 + ... + 4170095.

It is an arithmetic number, because the mean of its divisors is an integer number (6255141).

Almost surely, 2^16680374 is an apocalyptic number.

16680374 is a deficient number, since it is larger than the sum of its proper divisors (8340190).

16680374 is an equidigital number, since it uses as much as digits as its factorization.

16680374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8340189.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 16680374 is about 4084.1613582228. The cubic root of 16680374 is about 255.5064853344.

The spelling of 16680374 in words is "sixteen million, six hundred eighty thousand, three hundred seventy-four".