232120242 has 20 divisors (see below), whose sum is σ = 520121646. Its totient is φ = 77373360.

The previous prime is 232120241. The next prime is 232120243. The reversal of 232120242 is 242021232.

It is an interprime number because it is at equal distance from previous prime (232120241) and next prime (232120243).

It can be written as a sum of positive squares in only one way, i.e., 226171521 + 5948721 = 15039^2 + 2439^2 .

It is a super-2 number, since 2×232120242² = 107759613492277128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (232120241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 716259 + ... + 716582.

Almost surely, 2^232120242 is an apocalyptic number.

232120242 is an abundant number, since it is smaller than the sum of its proper divisors (288001404).

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

232120242 is a wasteful number, since it uses less digits than its factorization.

232120242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432855 (or 1432846 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 232120242 is about 15235.4928374503. The cubic root of 232120242 is about 614.5695024120.

Adding to 232120242 its reverse (242021232), we get a palindrome (474141474).

The spelling of 232120242 in words is "two hundred thirty-two million, one hundred twenty thousand, two hundred forty-two".