190887620 has 48 divisors (see below), whose sum is σ = 499782528. Its totient is φ = 59496960.

The previous prime is 190887581. The next prime is 190887643. The reversal of 190887620 is 26788091.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

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 15 ways as a sum of consecutive naturals, for example, 60437 + ... + 63516.

It is an arithmetic number, because the mean of its divisors is an integer number (10412136).

Almost surely, 2^190887620 is an apocalyptic number.

190887620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190887620 is an abundant number, since it is smaller than the sum of its proper divisors (308894908).

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

190887620 is a wasteful number, since it uses less digits than its factorization.

190887620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123980 (or 123978 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 190887620 is about 13816.2085971514. The cubic root of 190887620 is about 575.7835518077.

The spelling of 190887620 in words is "one hundred ninety million, eight hundred eighty-seven thousand, six hundred twenty".