16421914 has 8 divisors (see below), whose sum is σ = 24650100. Its totient is φ = 8205216.

The previous prime is 16421897. The next prime is 16421963. The reversal of 16421914 is 41912461.

16421914 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 15249025 + 1172889 = 3905^2 + 1083^2 .

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

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, 3862 + ... + 6910.

Almost surely, 2^16421914 is an apocalyptic number.

16421914 is a deficient number, since it is larger than the sum of its proper divisors (8228186).

16421914 is a wasteful number, since it uses less digits than its factorization.

16421914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5744.

The product of its digits is 1728, while the sum is 28.

The square root of 16421914 is about 4052.3960813326. The cubic root of 16421914 is about 254.1799312018.

The spelling of 16421914 in words is "sixteen million, four hundred twenty-one thousand, nine hundred fourteen".