199750642 has 32 divisors (see below), whose sum is σ = 378749952. Its totient is φ = 76883904.

The previous prime is 199750633. The next prime is 199750669. The reversal of 199750642 is 246057991.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8098 + ... + 21565.

It is an arithmetic number, because the mean of its divisors is an integer number (11835936).

Almost surely, 2^199750642 is an apocalyptic number.

199750642 is a deficient number, since it is larger than the sum of its proper divisors (178999310).

199750642 is a wasteful number, since it uses less digits than its factorization.

199750642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29722.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 199750642 is about 14133.3167374116. The cubic root of 199750642 is about 584.5604041599.

The spelling of 199750642 in words is "one hundred ninety-nine million, seven hundred fifty thousand, six hundred forty-two".