199487250 has 48 divisors (see below), whose sum is σ = 539419608. Its totient is φ = 53196000.

The previous prime is 199487219. The next prime is 199487261. The reversal of 199487250 is 52784991.

It can be written as a sum of positive squares in 4 ways, for example, as 7969329 + 191517921 = 2823^2 + 13839^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 199487196 and 199487205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42081 + ... + 46580.

Almost surely, 2^199487250 is an apocalyptic number.

199487250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199487250 is an abundant number, since it is smaller than the sum of its proper divisors (339932358).

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

199487250 is a wasteful number, since it uses less digits than its factorization.

199487250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88684 (or 88671 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 199487250 is about 14123.9955395065. The cubic root of 199487250 is about 584.3033565787.

The spelling of 199487250 in words is "one hundred ninety-nine million, four hundred eighty-seven thousand, two hundred fifty".