199152492 has 96 divisors (see below), whose sum is σ = 604606464. Its totient is φ = 49473600.

The previous prime is 199152427. The next prime is 199152493. The reversal of 199152492 is 294251991.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (199152493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16567 + ... + 25937.

It is an arithmetic number, because the mean of its divisors is an integer number (6297984).

Almost surely, 2^199152492 is an apocalyptic number.

199152492 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 199152492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302303232).

199152492 is an abundant number, since it is smaller than the sum of its proper divisors (405453972).

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

199152492 is a wasteful number, since it uses less digits than its factorization.

199152492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9419 (or 9417 counting only the distinct ones).

The product of its digits is 58320, while the sum is 42.

The square root of 199152492 is about 14112.1398802591. The cubic root of 199152492 is about 583.9763352830.

The spelling of 199152492 in words is "one hundred ninety-nine million, one hundred fifty-two thousand, four hundred ninety-two".