16123400 has 48 divisors (see below), whose sum is σ = 39469200. Its totient is φ = 6108480.

The previous prime is 16123399. The next prime is 16123403. The reversal of 16123400 is 432161.

It is not an unprimeable number, because it can be changed into a prime (16123403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1679 + ... + 5921.

It is an arithmetic number, because the mean of its divisors is an integer number (822275).

Almost surely, 2^16123400 is an apocalyptic number.

16123400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16123400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19734600).

16123400 is an abundant number, since it is smaller than the sum of its proper divisors (23345800).

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

16123400 is a wasteful number, since it uses less digits than its factorization.

16123400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4278 (or 4269 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 16123400 is about 4015.3953728120. The cubic root of 16123400 is about 252.6303610748.

Adding to 16123400 its reverse (432161), we get a palindrome (16555561).

The spelling of 16123400 in words is "sixteen million, one hundred twenty-three thousand, four hundred".