242404242440 has 32 divisors (see below), whose sum is σ = 554350691160. Its totient is φ = 95372160000.

The previous prime is 242404242439. The next prime is 242404242469. The reversal of 242404242440 is 44242404242.

It can be written as a sum of positive squares in 4 ways, for example, as 183319272964 + 59084969476 = 428158^2 + 243074^2 .

It is a junction number, because it is equal to n+sod(n) for n = 242404242397 and 242404242406.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49670561 + ... + 49675440.

Almost surely, 2^242404242440 is an apocalyptic number.

242404242440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242404242440 is an abundant number, since it is smaller than the sum of its proper divisors (311946448720).

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

242404242440 is a wasteful number, since it uses less digits than its factorization.

242404242440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99346073 (or 99346069 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 242404242440 its reverse (44242404242), we get a palindrome (286646646682).

The spelling of 242404242440 in words is "two hundred forty-two billion, four hundred four million, two hundred forty-two thousand, four hundred forty".