190271220 has 24 divisors (see below), whose sum is σ = 532759584. Its totient is φ = 50738976.

The previous prime is 190271189. The next prime is 190271227. The reversal of 190271220 is 22172091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190271227) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1585534 + ... + 1585653.

It is an arithmetic number, because the mean of its divisors is an integer number (22198316).

Almost surely, 2^190271220 is an apocalyptic number.

190271220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190271220 is an abundant number, since it is smaller than the sum of its proper divisors (342488364).

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

190271220 is a wasteful number, since it uses less digits than its factorization.

190271220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171199 (or 3171197 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 190271220 is about 13793.8834270846. The cubic root of 190271220 is about 575.1631244805.

The spelling of 190271220 in words is "one hundred ninety million, two hundred seventy-one thousand, two hundred twenty".