190628220 has 24 divisors (see below), whose sum is σ = 533759184. Its totient is φ = 50834176.

The previous prime is 190628219. The next prime is 190628279. The reversal of 190628220 is 22826091.

190628220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1588509 + ... + 1588628.

It is an arithmetic number, because the mean of its divisors is an integer number (22239966).

Almost surely, 2^190628220 is an apocalyptic number.

190628220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190628220 is an abundant number, since it is smaller than the sum of its proper divisors (343130964).

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

190628220 is a wasteful number, since it uses less digits than its factorization.

190628220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3177149 (or 3177147 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 190628220 is about 13806.8178810325. The cubic root of 190628220 is about 575.5226199926.

The spelling of 190628220 in words is "one hundred ninety million, six hundred twenty-eight thousand, two hundred twenty".