16384225 has 24 divisors (see below), whose sum is σ = 23873472. Its totient is φ = 10996800.

The previous prime is 16384223. The next prime is 16384231. The reversal of 16384225 is 52248361.

It is not a de Polignac number, because 16384225 - 2¹ = 16384223 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16384223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1284 + ... + 5866.

It is an arithmetic number, because the mean of its divisors is an integer number (994728).

Almost surely, 2^16384225 is an apocalyptic number.

It is an amenable number.

16384225 is a deficient number, since it is larger than the sum of its proper divisors (7489247).

16384225 is a wasteful number, since it uses less digits than its factorization.

16384225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4617 (or 4612 counting only the distinct ones).

The product of its digits is 11520, while the sum is 31.

The square root of 16384225 is about 4047.7431983761. The cubic root of 16384225 is about 253.9853309568.

It can be divided in two parts, 16384 and 225, that multiplied together give a square (3686400 = 1920²).

The spelling of 16384225 in words is "sixteen million, three hundred eighty-four thousand, two hundred twenty-five".