242220440440 has 64 divisors (see below), whose sum is σ = 595814693760. Its totient is φ = 87891477120.

The previous prime is 242220440401. The next prime is 242220440443. The reversal of 242220440440 is 44044022242.

It is a junction number, because it is equal to n+sod(n) for n = 242220440399 and 242220440408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242220440443) 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, 383922 + ... + 794881.

It is an arithmetic number, because the mean of its divisors is an integer number (9309604590).

Almost surely, 2^242220440440 is an apocalyptic number.

242220440440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242220440440 is an abundant number, since it is smaller than the sum of its proper divisors (353594253320).

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

242220440440 is a wasteful number, since it uses less digits than its factorization.

242220440440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1179292 (or 1179288 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 242220440440 its reverse (44044022242), we get a palindrome (286264462682).

The spelling of 242220440440 in words is "two hundred forty-two billion, two hundred twenty million, four hundred forty thousand, four hundred forty".