235997642 has 4 divisors (see below), whose sum is σ = 353996466. Its totient is φ = 117998820.

The previous prime is 235997633. The next prime is 235997647. The reversal of 235997642 is 246799532.

235997642 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 184172041 + 51825601 = 13571^2 + 7199^2 .

It is not an unprimeable number, because it can be changed into a prime (235997647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58999409 + ... + 58999412.

Almost surely, 2^235997642 is an apocalyptic number.

235997642 is a deficient number, since it is larger than the sum of its proper divisors (117998824).

235997642 is a wasteful number, since it uses less digits than its factorization.

235997642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117998823.

The product of its digits is 816480, while the sum is 47.

The square root of 235997642 is about 15362.2147491825. The cubic root of 235997642 is about 617.9726024099.

It can be divided in two parts, 2359 and 97642, that added together give a palindrome (100001).

The spelling of 235997642 in words is "two hundred thirty-five million, nine hundred ninety-seven thousand, six hundred forty-two".