190886220 has 288 divisors, whose sum is σ = 712298496. Its totient is φ = 41990400.

The previous prime is 190886161. The next prime is 190886233. The reversal of 190886220 is 22688091.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1054530 + ... + 1054710.

Almost surely, 2^190886220 is an apocalyptic number.

190886220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190886220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356149248).

190886220 is an abundant number, since it is smaller than the sum of its proper divisors (521412276).

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

190886220 is a wasteful number, since it uses less digits than its factorization.

190886220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 190886220 is about 13816.1579319288. The cubic root of 190886220 is about 575.7821441750.

The spelling of 190886220 in words is "one hundred ninety million, eight hundred eighty-six thousand, two hundred twenty".