1235863968 has 192 divisors, whose sum is σ = 3614284800. Its totient is φ = 367994880.

The previous prime is 1235863963. The next prime is 1235864023. The reversal of 1235863968 is 8693685321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1235863968.

It is not an unprimeable number, because it can be changed into a prime (1235863963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3733563 + ... + 3733893.

It is an arithmetic number, because the mean of its divisors is an integer number (18824400).

Almost surely, 2^1235863968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1235863968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1807142400).

1235863968 is an abundant number, since it is smaller than the sum of its proper divisors (2378420832).

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

1235863968 is a wasteful number, since it uses less digits than its factorization.

1235863968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 467 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 51.

The square root of 1235863968 is about 35154.8569617343. The cubic root of 1235863968 is about 1073.1412532155.

The spelling of 1235863968 in words is "one billion, two hundred thirty-five million, eight hundred sixty-three thousand, nine hundred sixty-eight".