190621120 has 56 divisors (see below), whose sum is σ = 459449424. Its totient is φ = 75319296.

The previous prime is 190621111. The next prime is 190621121. The reversal of 190621120 is 21126091.

It is a super-2 number, since 2×190621120² = 72672822780108800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190621091 and 190621100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190621121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22972 + ... + 30148.

It is an arithmetic number, because the mean of its divisors is an integer number (8204454).

Almost surely, 2^190621120 is an apocalyptic number.

190621120 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 190621120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229724712).

190621120 is an abundant number, since it is smaller than the sum of its proper divisors (268828304).

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

190621120 is an equidigital number, since it uses as much as digits as its factorization.

190621120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7277 (or 7267 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 190621120 is about 13806.5607592912. The cubic root of 190621120 is about 575.5154747383.

The spelling of 190621120 in words is "one hundred ninety million, six hundred twenty-one thousand, one hundred twenty".