190486930 has 16 divisors (see below), whose sum is σ = 347574744. Its totient is φ = 75150720.

The previous prime is 190486927. The next prime is 190486931. The reversal of 190486930 is 39684091.

190486930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 188815081 + 1671849 = 13741^2 + 1293^2 .

It is not an unprimeable number, because it can be changed into a prime (190486931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129741 + ... + 131200.

Almost surely, 2^190486930 is an apocalyptic number.

190486930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190486930 is a deficient number, since it is larger than the sum of its proper divisors (157087814).

190486930 is a wasteful number, since it uses less digits than its factorization.

190486930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261021.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 190486930 is about 13801.7002575770. The cubic root of 190486930 is about 575.3803960534.

The spelling of 190486930 in words is "one hundred ninety million, four hundred eighty-six thousand, nine hundred thirty".