16740638 has 8 divisors (see below), whose sum is σ = 25142832. Its totient is φ = 8359696.

The previous prime is 16740623. The next prime is 16740641. The reversal of 16740638 is 83604761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16740598 and 16740607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3170 + ... + 6597.

It is an arithmetic number, because the mean of its divisors is an integer number (3142854).

Almost surely, 2^16740638 is an apocalyptic number.

16740638 is a deficient number, since it is larger than the sum of its proper divisors (8402194).

16740638 is an equidigital number, since it uses as much as digits as its factorization.

16740638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10626.

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

The square root of 16740638 is about 4091.5324757357. The cubic root of 16740638 is about 255.8138193007.

The spelling of 16740638 in words is "sixteen million, seven hundred forty thousand, six hundred thirty-eight".