199750970 has 16 divisors (see below), whose sum is σ = 359852328. Its totient is φ = 79833600.

The previous prime is 199750963. The next prime is 199750973. The reversal of 199750970 is 79057991.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 187169761 + 12581209 = 13681^2 + 3547^2 .

It is not an unprimeable number, because it can be changed into a prime (199750973) 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, 5270 + ... + 20670.

Almost surely, 2^199750970 is an apocalyptic number.

199750970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199750970 is a deficient number, since it is larger than the sum of its proper divisors (160101358).

199750970 is a wasteful number, since it uses less digits than its factorization.

199750970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16705.

The product of its (nonzero) digits is 178605, while the sum is 47.

The square root of 199750970 is about 14133.3283411941. The cubic root of 199750970 is about 584.5607241183.

The spelling of 199750970 in words is "one hundred ninety-nine million, seven hundred fifty thousand, nine hundred seventy".