16204144 has 40 divisors (see below), whose sum is σ = 35747712. Its totient is φ = 7043520.

The previous prime is 16204129. The next prime is 16204147. The reversal of 16204144 is 44140261.

16204144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16204147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2047 + ... + 6049.

Almost surely, 2^16204144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16204144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17873856).

16204144 is an abundant number, since it is smaller than the sum of its proper divisors (19543568).

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

16204144 is a wasteful number, since it uses less digits than its factorization.

16204144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4045 (or 4039 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 16204144 is about 4025.4371191214. The cubic root of 16204144 is about 253.0513729670.

The spelling of 16204144 in words is "sixteen million, two hundred four thousand, one hundred forty-four".