190628380 has 12 divisors (see below), whose sum is σ = 400319640. Its totient is φ = 76251344.

The previous prime is 190628371. The next prime is 190628407. The reversal of 190628380 is 83826091.

It is a super-2 number, since 2×190628380² = 72678358522848800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4765690 + ... + 4765729.

It is an arithmetic number, because the mean of its divisors is an integer number (33359970).

Almost surely, 2^190628380 is an apocalyptic number.

190628380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190628380 is an abundant number, since it is smaller than the sum of its proper divisors (209691260).

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

190628380 is a wasteful number, since it uses less digits than its factorization.

190628380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9531428 (or 9531426 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 190628380 is about 13806.8236752701. The cubic root of 190628380 is about 575.5227810104.

The spelling of 190628380 in words is "one hundred ninety million, six hundred twenty-eight thousand, three hundred eighty".