232742221340 has 24 divisors (see below), whose sum is σ = 489132674352. Its totient is φ = 93025648640.

The previous prime is 232742221339. The next prime is 232742221403. The reversal of 232742221340 is 43122247232.

It is a junction number, because it is equal to n+sod(n) for n = 232742221297 and 232742221306.

It is a congruent number.

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, 4425701 + ... + 4477980.

It is an arithmetic number, because the mean of its divisors is an integer number (20380528098).

Almost surely, 2^232742221340 is an apocalyptic number.

232742221340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232742221340 is an abundant number, since it is smaller than the sum of its proper divisors (256390453012).

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

232742221340 is a wasteful number, since it uses less digits than its factorization.

232742221340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8904997 (or 8904995 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 32.

Adding to 232742221340 its reverse (43122247232), we get a palindrome (275864468572).

The spelling of 232742221340 in words is "two hundred thirty-two billion, seven hundred forty-two million, two hundred twenty-one thousand, three hundred forty".