199245240 has 96 divisors (see below), whose sum is σ = 663390000. Its totient is φ = 51832320.

The previous prime is 199245239. The next prime is 199245257. The reversal of 199245240 is 42542991.

199245240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 199245195 and 199245204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8011 + ... + 21509.

Almost surely, 2^199245240 is an apocalyptic number.

199245240 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 199245240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331695000).

199245240 is an abundant number, since it is smaller than the sum of its proper divisors (464144760).

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

199245240 is a wasteful number, since it uses less digits than its factorization.

199245240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13557 (or 13550 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 199245240 is about 14115.4256046355. The cubic root of 199245240 is about 584.0669764306.

The spelling of 199245240 in words is "one hundred ninety-nine million, two hundred forty-five thousand, two hundred forty".