235089978 has 16 divisors (see below), whose sum is σ = 470988000. Its totient is φ = 78228656.

The previous prime is 235089977. The next prime is 235090057. The reversal of 235089978 is 879980532.

It is a self number, because there is not a number n which added to its sum of digits gives 235089978.

It is not an unprimeable number, because it can be changed into a prime (235089973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29853 + ... + 36896.

It is an arithmetic number, because the mean of its divisors is an integer number (29436750).

Almost surely, 2^235089978 is an apocalyptic number.

235089978 is an abundant number, since it is smaller than the sum of its proper divisors (235898022).

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

235089978 is a wasteful number, since it uses less digits than its factorization.

235089978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67341.

The product of its (nonzero) digits is 1088640, while the sum is 51.

The square root of 235089978 is about 15332.6441946587. The cubic root of 235089978 is about 617.1793287682.

The spelling of 235089978 in words is "two hundred thirty-five million, eighty-nine thousand, nine hundred seventy-eight".