1305333242 has 4 divisors (see below), whose sum is σ = 1957999866. Its totient is φ = 652666620.

The previous prime is 1305333203. The next prime is 1305333247. The reversal of 1305333242 is 2423335031.

It is a happy number.

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., 827080081 + 478253161 = 28759^2 + 21869^2 .

It is not an unprimeable number, because it can be changed into a prime (1305333247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326333309 + ... + 326333312.

Almost surely, 2^1305333242 is an apocalyptic number.

1305333242 is a deficient number, since it is larger than the sum of its proper divisors (652666624).

1305333242 is an equidigital number, since it uses as much as digits as its factorization.

1305333242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652666623.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 1305333242 is about 36129.3958155959. The cubic root of 1305333242 is about 1092.8833242690.

Adding to 1305333242 its reverse (2423335031), we get a palindrome (3728668273).

The spelling of 1305333242 in words is "one billion, three hundred five million, three hundred thirty-three thousand, two hundred forty-two".