190032140 has 36 divisors (see below), whose sum is σ = 404835984. Its totient is φ = 74929536.

The previous prime is 190032133. The next prime is 190032149. The reversal of 190032140 is 41230091.

190032140 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×190032140² = 72224428465959200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

190032140 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (190032149) 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 11 ways as a sum of consecutive naturals, for example, 105689 + ... + 107471.

It is an arithmetic number, because the mean of its divisors is an integer number (11245444).

Almost surely, 2^190032140 is an apocalyptic number.

190032140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190032140 is an abundant number, since it is smaller than the sum of its proper divisors (214803844).

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

190032140 is a wasteful number, since it uses less digits than its factorization.

190032140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938 (or 1863 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 190032140 is about 13785.2145431255. The cubic root of 190032140 is about 574.9221217778.

The spelling of 190032140 in words is "one hundred ninety million, thirty-two thousand, one hundred forty".