199252992 has 88 divisors (see below), whose sum is σ = 545746576. Its totient is φ = 64585728.

The previous prime is 199252987. The next prime is 199253003. The reversal of 199252992 is 299252991.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112788 + ... + 114540.

Almost surely, 2^199252992 is an apocalyptic number.

199252992 is a gapful number since it is divisible by the number (12) 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 199252992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272873288).

199252992 is an abundant number, since it is smaller than the sum of its proper divisors (346493584).

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

199252992 is a wasteful number, since it uses less digits than its factorization.

199252992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813 (or 1795 counting only the distinct ones).

The product of its digits is 262440, while the sum is 48.

The square root of 199252992 is about 14115.7001951727. The cubic root of 199252992 is about 584.0745510632.

Subtracting 199252992 from its reverse (299252991), we obtain a palindrome (99999999).

The spelling of 199252992 in words is "one hundred ninety-nine million, two hundred fifty-two thousand, nine hundred ninety-two".