16400706 has 16 divisors (see below), whose sum is σ = 37487424. Its totient is φ = 4685904.

The previous prime is 16400693. The next prime is 16400711. The reversal of 16400706 is 60700461.

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, 195205 + ... + 195288.

It is an arithmetic number, because the mean of its divisors is an integer number (2342964).

Almost surely, 2^16400706 is an apocalyptic number.

16400706 is an abundant number, since it is smaller than the sum of its proper divisors (21086718).

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

16400706 is a wasteful number, since it uses less digits than its factorization.

16400706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390505.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 16400706 is about 4049.7785124621. The cubic root of 16400706 is about 254.0704642577.

The spelling of 16400706 in words is "sixteen million, four hundred thousand, seven hundred six".