242440330440 has 128 divisors (see below), whose sum is σ = 906789841920. Its totient is φ = 50377209600.

The previous prime is 242440330387. The next prime is 242440330463. The reversal of 242440330440 is 44033044242.

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

It is a junction number, because it is equal to n+sod(n) for n = 242440330398 and 242440330407.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13109826 + ... + 13128305.

It is an arithmetic number, because the mean of its divisors is an integer number (7084295640).

Almost surely, 2^242440330440 is an apocalyptic number.

242440330440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242440330440 is an abundant number, since it is smaller than the sum of its proper divisors (664349511480).

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

242440330440 is a wasteful number, since it uses less digits than its factorization.

242440330440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26238163 (or 26238159 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 30.

Adding to 242440330440 its reverse (44033044242), we get a palindrome (286473374682).

The spelling of 242440330440 in words is "two hundred forty-two billion, four hundred forty million, three hundred thirty thousand, four hundred forty".