840193230 has 32 divisors (see below), whose sum is σ = 2040764544. Its totient is φ = 221351456.

The previous prime is 840193229. The next prime is 840193231. The reversal of 840193230 is 32391048.

It is an interprime number because it is at equal distance from previous prime (840193229) and next prime (840193231).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840193231) 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 15 ways as a sum of consecutive naturals, for example, 166224 + ... + 171203.

It is an arithmetic number, because the mean of its divisors is an integer number (63773892).

Almost surely, 2^840193230 is an apocalyptic number.

840193230 is an abundant number, since it is smaller than the sum of its proper divisors (1200571314).

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

840193230 is a wasteful number, since it uses less digits than its factorization.

840193230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337520.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 840193230 is about 28986.0868348937. The cubic root of 840193230 is about 943.6111397234.

The spelling of 840193230 in words is "eight hundred forty million, one hundred ninety-three thousand, two hundred thirty".