16401606 has 16 divisors (see below), whose sum is σ = 35326704. Its totient is φ = 5046624.

The previous prime is 16401589. The next prime is 16401641. The reversal of 16401606 is 60610461.

16401606 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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, 105061 + ... + 105216.

It is an arithmetic number, because the mean of its divisors is an integer number (2207919).

Almost surely, 2^16401606 is an apocalyptic number.

16401606 is an abundant number, since it is smaller than the sum of its proper divisors (18925098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16401606 is a wasteful number, since it uses less digits than its factorization.

16401606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210295.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 16401606 is about 4049.8896281257. The cubic root of 16401606 is about 254.0751116031.

The spelling of 16401606 in words is "sixteen million, four hundred one thousand, six hundred six".