190231240 has 16 divisors (see below), whose sum is σ = 428020380. Its totient is φ = 76092480.

The previous prime is 190231193. The next prime is 190231243. The reversal of 190231240 is 42132091.

190231240 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 189282564 + 948676 = 13758^2 + 974^2 .

It is not an unprimeable number, because it can be changed into a prime (190231243) 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, 2377851 + ... + 2377930.

Almost surely, 2^190231240 is an apocalyptic number.

190231240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190231240 is an abundant number, since it is smaller than the sum of its proper divisors (237789140).

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

190231240 is a wasteful number, since it uses less digits than its factorization.

190231240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4755792 (or 4755788 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 190231240 is about 13792.4341578998. The cubic root of 190231240 is about 575.1228370205.

The spelling of 190231240 in words is "one hundred ninety million, two hundred thirty-one thousand, two hundred forty".