199478250 has 48 divisors (see below), whose sum is σ = 539395272. Its totient is φ = 53193600.

The previous prime is 199478249. The next prime is 199478297. The reversal of 199478250 is 52874991.

It can be written as a sum of positive squares in 4 ways, for example, as 65173329 + 134304921 = 8073^2 + 11589^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 199478196 and 199478205.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42079 + ... + 46578.

Almost surely, 2^199478250 is an apocalyptic number.

199478250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199478250 is an abundant number, since it is smaller than the sum of its proper divisors (339917022).

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

199478250 is a wasteful number, since it uses less digits than its factorization.

199478250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88680 (or 88667 counting only the distinct ones).

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

The square root of 199478250 is about 14123.6769291853. The cubic root of 199478250 is about 584.2945693683.

The spelling of 199478250 in words is "one hundred ninety-nine million, four hundred seventy-eight thousand, two hundred fifty".