1240443420230 has 32 divisors (see below), whose sum is σ = 2552275249920. Its totient is φ = 425210565600.

The previous prime is 1240443420197. The next prime is 1240443420239. The reversal of 1240443420230 is 320243440421.

It is a junction number, because it is equal to n+sod(n) for n = 1240443420193 and 1240443420202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240443420239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1400600 + ... + 2107739.

It is an arithmetic number, because the mean of its divisors is an integer number (79758601560).

Almost surely, 2^{1240443420230} is an apocalyptic number.

1240443420230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1240443420230 is an abundant number, since it is smaller than the sum of its proper divisors (1311831829690).

1240443420230 is a wasteful number, since it uses less digits than its factorization.

1240443420230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3513404.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 1240443420230 its reverse (320243440421), we get a palindrome (1560686860651).

The spelling of 1240443420230 in words is "one trillion, two hundred forty billion, four hundred forty-three million, four hundred twenty thousand, two hundred thirty".