240312011420 has 24 divisors (see below), whose sum is σ = 543474857184. Its totient is φ = 88730588736.

The previous prime is 240312011347. The next prime is 240312011479. The reversal of 240312011420 is 24110213042.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 240312011392 and 240312011401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462138224 + ... + 462138743.

It is an arithmetic number, because the mean of its divisors is an integer number (22644785716).

Almost surely, 2^240312011420 is an apocalyptic number.

240312011420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240312011420 is an abundant number, since it is smaller than the sum of its proper divisors (303162845764).

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

240312011420 is a wasteful number, since it uses less digits than its factorization.

240312011420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924276989 (or 924276987 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 240312011420 its reverse (24110213042), we get a palindrome (264422224462).

The spelling of 240312011420 in words is "two hundred forty billion, three hundred twelve million, eleven thousand, four hundred twenty".