199470000 has 200 divisors, whose sum is σ = 660476080. Its totient is φ = 51840000.

The previous prime is 199469981. The next prime is 199470001. The reversal of 199470000 is 74991.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 199470000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199470001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1829946 + ... + 1830054.

Almost surely, 2^199470000 is an apocalyptic number.

199470000 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 199470000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330238040).

199470000 is an abundant number, since it is smaller than the sum of its proper divisors (461006080).

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

199470000 is a wasteful number, since it uses less digits than its factorization.

199470000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 180 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 30.

The square root of 199470000 is about 14123.3848634100. The cubic root of 199470000 is about 584.2865141933.

The spelling of 199470000 in words is "one hundred ninety-nine million, four hundred seventy thousand".