242202040040 has 32 divisors (see below), whose sum is σ = 568648270080. Its totient is φ = 92668606272.

The previous prime is 242202040033. The next prime is 242202040049. The reversal of 242202040040 is 40040202242.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 242202039994 and 242202040021.

It is not an unprimeable number, because it can be changed into a prime (242202040049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131630624 + ... + 131632463.

It is an arithmetic number, because the mean of its divisors is an integer number (17770258440).

Almost surely, 2^242202040040 is an apocalyptic number.

242202040040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242202040040 is an abundant number, since it is smaller than the sum of its proper divisors (326446230040).

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

242202040040 is a wasteful number, since it uses less digits than its factorization.

242202040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263263121 (or 263263117 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 242202040040 its reverse (40040202242), we get a palindrome (282242242282).

The spelling of 242202040040 in words is "two hundred forty-two billion, two hundred two million, forty thousand, forty".