1240343230 has 32 divisors (see below), whose sum is σ = 2620529856. Its totient is φ = 413766144.

The previous prime is 1240343191. The next prime is 1240343281. The reversal of 1240343230 is 323430421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236859 + ... + 242038.

It is an arithmetic number, because the mean of its divisors is an integer number (81891558).

Almost surely, 2^1240343230 is an apocalyptic number.

1240343230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1240343230 is an abundant number, since it is smaller than the sum of its proper divisors (1380186626).

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

1240343230 is a wasteful number, since it uses less digits than its factorization.

1240343230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478948.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 1240343230 is about 35218.5069246270. The cubic root of 1240343230 is about 1074.4361867673.

Adding to 1240343230 its reverse (323430421), we get a palindrome (1563773651).

The spelling of 1240343230 in words is "one billion, two hundred forty million, three hundred forty-three thousand, two hundred thirty".