1235240308 has 12 divisors (see below), whose sum is σ = 2166488100. Its totient is φ = 616243712.

The previous prime is 1235240299. The next prime is 1235240309. The reversal of 1235240308 is 8030425321.

It can be written as a sum of positive squares in 2 ways, for example, as 1037612944 + 197627364 = 32212^2 + 14058^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235240309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342091 + ... + 345682.

It is an arithmetic number, because the mean of its divisors is an integer number (180540675).

Almost surely, 2^1235240308 is an apocalyptic number.

It is an amenable number.

1235240308 is a deficient number, since it is larger than the sum of its proper divisors (931247792).

1235240308 is a wasteful number, since it uses less digits than its factorization.

1235240308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688226 (or 688224 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1235240308 is about 35145.9856598161. The cubic root of 1235240308 is about 1072.9607080254.

Adding to 1235240308 its reverse (8030425321), we get a palindrome (9265665629).

The spelling of 1235240308 in words is "one billion, two hundred thirty-five million, two hundred forty thousand, three hundred eight".