240335223420 has 48 divisors (see below), whose sum is σ = 702196830720. Its totient is φ = 61302897216.

The previous prime is 240335223419. The next prime is 240335223439. The reversal of 240335223420 is 24322533042.

It is a happy number.

It is a super-2 number, since 2×240335223420² (a number of 24 digits) contains 22 as substring.

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

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 15 ways as a sum of consecutive naturals, for example, 87076600 + ... + 87079359.

It is an arithmetic number, because the mean of its divisors is an integer number (14629100640).

Almost surely, 2^240335223420 is an apocalyptic number.

240335223420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240335223420 is an abundant number, since it is smaller than the sum of its proper divisors (461861607300).

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

240335223420 is a wasteful number, since it uses less digits than its factorization.

240335223420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174155994 (or 174155992 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 30.

Adding to 240335223420 its reverse (24322533042), we get a palindrome (264657756462).

The spelling of 240335223420 in words is "two hundred forty billion, three hundred thirty-five million, two hundred twenty-three thousand, four hundred twenty".