1240020400230 has 48 divisors (see below), whose sum is σ = 3343462419024. Its totient is φ = 330672106080.

The previous prime is 1240020400219. The next prime is 1240020400243. The reversal of 1240020400230 is 320040200421.

1240020400230 is a `hidden beast` number, since 1 + 240 + 0 + 2 + 0 + 400 + 23 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 255145801 + ... + 255150660.

It is an arithmetic number, because the mean of its divisors is an integer number (69655467063).

Almost surely, 2^{1240020400230} is an apocalyptic number.

1240020400230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1240020400230 is an abundant number, since it is smaller than the sum of its proper divisors (2103442018794).

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

1240020400230 is an equidigital number, since it uses as much as digits as its factorization.

1240020400230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510296483 (or 510296471 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 1240020400230 its reverse (320040200421), we get a palindrome (1560060600651).

The spelling of 1240020400230 in words is "one trillion, two hundred forty billion, twenty million, four hundred thousand, two hundred thirty".