16123900 has 72 divisors (see below), whose sum is σ = 38400320. Its totient is φ = 5840640.

The previous prime is 16123883. The next prime is 16123901. The reversal of 16123900 is 932161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16123901) 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, 102622 + ... + 102778.

Almost surely, 2^16123900 is an apocalyptic number.

16123900 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 16123900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19200160).

16123900 is an abundant number, since it is smaller than the sum of its proper divisors (22276420).

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

16123900 is a wasteful number, since it uses less digits than its factorization.

16123900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 16123900 is about 4015.4576326989. The cubic root of 16123900 is about 252.6329724734.

The spelling of 16123900 in words is "sixteen million, one hundred twenty-three thousand, nine hundred".