4235259978 has 24 divisors (see below), whose sum is σ = 9271002468. Its totient is φ = 1397198592.

The previous prime is 4235259971. The next prime is 4235260039. The reversal of 4235259978 is 8799525324.

4235259978 is a `hidden beast` number, since 4 + 23 + 525 + 9 + 97 + 8 = 666.

4235259978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3756831849 + 478428129 = 61293^2 + 21873^2 .

It is not an unprimeable number, because it can be changed into a prime (4235259971) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1211101 + ... + 1214592.

Almost surely, 2^4235259978 is an apocalyptic number.

4235259978 is an abundant number, since it is smaller than the sum of its proper divisors (5035742490).

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

4235259978 is a wasteful number, since it uses less digits than its factorization.

4235259978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2425798 (or 2425795 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The square root of 4235259978 is about 65078.8750517401. The cubic root of 4235259978 is about 1617.9311060929.

The spelling of 4235259978 in words is "four billion, two hundred thirty-five million, two hundred fifty-nine thousand, nine hundred seventy-eight".