189970200 has 144 divisors (see below), whose sum is σ = 729172080. Its totient is φ = 43418880.

The previous prime is 189970181. The next prime is 189970219. The reversal of 189970200 is 2079981.

It is a happy number.

189970200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (189970181) and next prime (189970219).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5062 + ... + 20138.

It is an arithmetic number, because the mean of its divisors is an integer number (5063695).

Almost surely, 2^189970200 is an apocalyptic number.

189970200 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 189970200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364586040).

189970200 is an abundant number, since it is smaller than the sum of its proper divisors (539201880).

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

189970200 is a wasteful number, since it uses less digits than its factorization.

189970200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15106 (or 15094 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 189970200 is about 13782.9677500892. The cubic root of 189970200 is about 574.8596506857.

The spelling of 189970200 in words is "one hundred eighty-nine million, nine hundred seventy thousand, two hundred".