1235404342 has 4 divisors (see below), whose sum is σ = 1853106516. Its totient is φ = 617702170.

The previous prime is 1235404327. The next prime is 1235404369. The reversal of 1235404342 is 2434045321.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1235404342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308851084 + ... + 308851087.

It is an arithmetic number, because the mean of its divisors is an integer number (463276629).

Almost surely, 2^1235404342 is an apocalyptic number.

1235404342 is a deficient number, since it is larger than the sum of its proper divisors (617702174).

1235404342 is an equidigital number, since it uses as much as digits as its factorization.

1235404342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617702173.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 1235404342 is about 35148.3191916769. The cubic root of 1235404342 is about 1073.0082006051.

Adding to 1235404342 its reverse (2434045321), we get a palindrome (3669449663).

The spelling of 1235404342 in words is "one billion, two hundred thirty-five million, four hundred four thousand, three hundred forty-two".