190221950 has 24 divisors (see below), whose sum is σ = 355784520. Its totient is φ = 75664800.

The previous prime is 190221949. The next prime is 190221961. The reversal of 190221950 is 59122091.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 1460 + ... + 19559.

It is an arithmetic number, because the mean of its divisors is an integer number (14824355).

Almost surely, 2^190221950 is an apocalyptic number.

190221950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190221950 is a deficient number, since it is larger than the sum of its proper divisors (165562570).

190221950 is a wasteful number, since it uses less digits than its factorization.

190221950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21212 (or 21207 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 190221950 is about 13792.0973749463. The cubic root of 190221950 is about 575.1134747690.

The spelling of 190221950 in words is "one hundred ninety million, two hundred twenty-one thousand, nine hundred fifty".