1242434224240 has 120 divisors (see below), whose sum is σ = 3342251238480. Its totient is φ = 428015554560.

The previous prime is 1242434224223. The next prime is 1242434224243. The reversal of 1242434224240 is 424224342421.

It is a junction number, because it is equal to n+sod(n) for n = 1242434224196 and 1242434224205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242434224243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3193729 + ... + 3561568.

It is an arithmetic number, because the mean of its divisors is an integer number (27852093654).

Almost surely, 2^{1242434224240} is an apocalyptic number.

1242434224240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242434224240 is an abundant number, since it is smaller than the sum of its proper divisors (2099817014240).

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

1242434224240 is a wasteful number, since it uses less digits than its factorization.

1242434224240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6755351 (or 6755334 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 34.

Adding to 1242434224240 its reverse (424224342421), we get a palindrome (1666658566661).

The spelling of 1242434224240 in words is "one trillion, two hundred forty-two billion, four hundred thirty-four million, two hundred twenty-four thousand, two hundred forty".