16381104 has 20 divisors (see below), whose sum is σ = 42317976. Its totient is φ = 5460352.

The previous prime is 16381103. The next prime is 16381111. The reversal of 16381104 is 40118361.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (16381103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170589 + ... + 170684.

Almost surely, 2^16381104 is an apocalyptic number.

It is an amenable number.

16381104 is an abundant number, since it is smaller than the sum of its proper divisors (25936872).

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

16381104 is a wasteful number, since it uses less digits than its factorization.

16381104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341284 (or 341278 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 16381104 is about 4047.3576565458. The cubic root of 16381104 is about 253.9692028711.

Adding to 16381104 its reverse (40118361), we get a palindrome (56499465).

The spelling of 16381104 in words is "sixteen million, three hundred eighty-one thousand, one hundred four".