240221434434340 has 48 divisors (see below), whose sum is σ = 521199317076480. Its totient is φ = 92906578103040.

The previous prime is 240221434434259. The next prime is 240221434434347. The reversal of 240221434434340 is 43434434122042.

It is a super-2 number, since 2×240221434434340² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 240221434434293 and 240221434434302.

It is not an unprimeable number, because it can be changed into a prime (240221434434347) by changing a digit.

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, 170891662 + ... + 172291621.

It is an arithmetic number, because the mean of its divisors is an integer number (10858319105760).

Almost surely, 2^{240221434434340} is an apocalyptic number.

240221434434340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240221434434340 is an abundant number, since it is smaller than the sum of its proper divisors (280977882642140).

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

240221434434340 is a wasteful number, since it uses less digits than its factorization.

240221434434340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343184452 (or 343184450 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 40.

Adding to 240221434434340 its reverse (43434434122042), we get a palindrome (283655868556382).

The spelling of 240221434434340 in words is "two hundred forty trillion, two hundred twenty-one billion, four hundred thirty-four million, four hundred thirty-four thousand, three hundred forty".