16669478 has 16 divisors (see below), whose sum is σ = 28629504. Its totient is φ = 7130760.

The previous prime is 16669463. The next prime is 16669483. The reversal of 16669478 is 87496661.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12101 + ... + 13407.

It is an arithmetic number, because the mean of its divisors is an integer number (1789344).

Almost surely, 2^16669478 is an apocalyptic number.

16669478 is a deficient number, since it is larger than the sum of its proper divisors (11960026).

16669478 is a wasteful number, since it uses less digits than its factorization.

16669478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227.

The product of its digits is 435456, while the sum is 47.

The square root of 16669478 is about 4082.8272067282. The cubic root of 16669478 is about 255.4508389987.

The spelling of 16669478 in words is "sixteen million, six hundred sixty-nine thousand, four hundred seventy-eight".