242194188488 has 128 divisors (see below), whose sum is σ = 557024160000. Its totient is φ = 96423395328.

The previous prime is 242194188437. The next prime is 242194188503. The reversal of 242194188488 is 884881491242.

It is a super-2 number, since 2×242194188488² (a number of 24 digits) contains 22 as substring.

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, 11238908 + ... + 11260436.

It is an arithmetic number, because the mean of its divisors is an integer number (4351751250).

Almost surely, 2^242194188488 is an apocalyptic number.

242194188488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242194188488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278512080000).

242194188488 is an abundant number, since it is smaller than the sum of its proper divisors (314829971512).

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

242194188488 is a wasteful number, since it uses less digits than its factorization.

242194188488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21767 (or 21763 counting only the distinct ones).

The product of its digits is 9437184, while the sum is 59.

The spelling of 242194188488 in words is "two hundred forty-two billion, one hundred ninety-four million, one hundred eighty-eight thousand, four hundred eighty-eight".