199452240 has 160 divisors (see below), whose sum is σ = 739952640. Its totient is φ = 49089024.

The previous prime is 199452223. The next prime is 199452259. The reversal of 199452240 is 42254991.

199452240 is a `hidden beast` number, since 1 + 9 + 94 + 522 + 40 = 666.

199452240 is digitally balanced in base 2, 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 = 199452195 and 199452204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24529 + ... + 31631.

It is an arithmetic number, because the mean of its divisors is an integer number (4624704).

Almost surely, 2^199452240 is an apocalyptic number.

199452240 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 199452240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (369976320).

199452240 is an abundant number, since it is smaller than the sum of its proper divisors (540500400).

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

199452240 is a wasteful number, since it uses less digits than its factorization.

199452240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7138 (or 7126 counting only the distinct ones).

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

The square root of 199452240 is about 14122.7561049535. The cubic root of 199452240 is about 584.2691728446.

The spelling of 199452240 in words is "one hundred ninety-nine million, four hundred fifty-two thousand, two hundred forty".