16046646 has 64 divisors (see below), whose sum is σ = 40919040. Its totient is φ = 4073760.

The previous prime is 16046633. The next prime is 16046647. The reversal of 16046646 is 64664061.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16046647) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21345 + ... + 22083.

It is an arithmetic number, because the mean of its divisors is an integer number (639360).

Almost surely, 2^16046646 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16046646, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20459520).

16046646 is an abundant number, since it is smaller than the sum of its proper divisors (24872394).

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

16046646 is a wasteful number, since it uses less digits than its factorization.

16046646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 16046646 is about 4005.8265064778. The cubic root of 16046646 is about 252.2288485504.

The spelling of 16046646 in words is "sixteen million, forty-six thousand, six hundred forty-six".