199251468 has 48 divisors (see below), whose sum is σ = 556318560. Its totient is φ = 61307712.

The previous prime is 199251467. The next prime is 199251473. The reversal of 199251468 is 864152991.

199251468 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×199251468² = 79402295000310048, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (199251467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69555 + ... + 72362.

It is an arithmetic number, because the mean of its divisors is an integer number (11589970).

Almost surely, 2^199251468 is an apocalyptic number.

199251468 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

199251468 is an abundant number, since it is smaller than the sum of its proper divisors (357067092).

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

199251468 is a wasteful number, since it uses less digits than its factorization.

199251468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141943 (or 141935 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 199251468 is about 14115.6462126252. The cubic root of 199251468 is about 584.0730619481.

The spelling of 199251468 in words is "one hundred ninety-nine million, two hundred fifty-one thousand, four hundred sixty-eight".