199473140 has 24 divisors (see below), whose sum is σ = 419651232. Its totient is φ = 79644960.

The previous prime is 199473133. The next prime is 199473143. The reversal of 199473140 is 41374991.

It is a junction number, because it is equal to n+sod(n) for n = 199473094 and 199473103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199473143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2687 + ... + 20153.

It is an arithmetic number, because the mean of its divisors is an integer number (17485468).

Almost surely, 2^199473140 is an apocalyptic number.

199473140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199473140 is an abundant number, since it is smaller than the sum of its proper divisors (220178092).

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

199473140 is a wasteful number, since it uses less digits than its factorization.

199473140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18047 (or 18045 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 199473140 is about 14123.4960261261. The cubic root of 199473140 is about 584.2895800679.

The spelling of 199473140 in words is "one hundred ninety-nine million, four hundred seventy-three thousand, one hundred forty".