190974220 has 12 divisors (see below), whose sum is σ = 401045904. Its totient is φ = 76389680.

The previous prime is 190974197. The next prime is 190974227. The reversal of 190974220 is 22479091.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (190974227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4774336 + ... + 4774375.

It is an arithmetic number, because the mean of its divisors is an integer number (33420492).

Almost surely, 2^190974220 is an apocalyptic number.

190974220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190974220 is an abundant number, since it is smaller than the sum of its proper divisors (210071684).

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

190974220 is a wasteful number, since it uses less digits than its factorization.

190974220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9548720 (or 9548718 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 190974220 is about 13819.3422419448. The cubic root of 190974220 is about 575.8706105652.

The spelling of 190974220 in words is "one hundred ninety million, nine hundred seventy-four thousand, two hundred twenty".