242400242020 has 24 divisors (see below), whose sum is σ = 516638130624. Its totient is φ = 95512930656.

The previous prime is 242400242003. The next prime is 242400242059. The reversal of 242400242020 is 20242004242.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 242400241982 and 242400242000.

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, 90446512 + ... + 90449191.

It is an arithmetic number, because the mean of its divisors is an integer number (21526588776).

Almost surely, 2^242400242020 is an apocalyptic number.

242400242020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242400242020 is an abundant number, since it is smaller than the sum of its proper divisors (274237888604).

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

242400242020 is a wasteful number, since it uses less digits than its factorization.

242400242020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180895779 (or 180895777 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 242400242020 its reverse (20242004242), we get a palindrome (262642246262).

The spelling of 242400242020 in words is "two hundred forty-two billion, four hundred million, two hundred forty-two thousand, twenty".