190019140 has 12 divisors (see below), whose sum is σ = 399040236. Its totient is φ = 76007648.

The previous prime is 190019099. The next prime is 190019147. The reversal of 190019140 is 41910091.

190019140 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 2 ways, for example, as 89378116 + 100641024 = 9454^2 + 10032^2 .

It is a super-2 number, since 2×190019140² = 72214547132679200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190019147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4750459 + ... + 4750498.

It is an arithmetic number, because the mean of its divisors is an integer number (33253353).

Almost surely, 2^190019140 is an apocalyptic number.

190019140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190019140 is an abundant number, since it is smaller than the sum of its proper divisors (209021096).

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

190019140 is a wasteful number, since it uses less digits than its factorization.

190019140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9500966 (or 9500964 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 190019140 is about 13784.7430153775. The cubic root of 190019140 is about 574.9090114375.

The spelling of 190019140 in words is "one hundred ninety million, nineteen thousand, one hundred forty".