235623140 has 12 divisors (see below), whose sum is σ = 494808636. Its totient is φ = 94249248.

The previous prime is 235623137. The next prime is 235623151. The reversal of 235623140 is 41326532.

It can be written as a sum of positive squares in 2 ways, for example, as 176517796 + 59105344 = 13286^2 + 7688^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5890559 + ... + 5890598.

It is an arithmetic number, because the mean of its divisors is an integer number (41234053).

Almost surely, 2^235623140 is an apocalyptic number.

235623140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

235623140 is an abundant number, since it is smaller than the sum of its proper divisors (259185496).

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

235623140 is a wasteful number, since it uses less digits than its factorization.

235623140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11781166 (or 11781164 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 235623140 is about 15350.0208468914. The cubic root of 235623140 is about 617.6455447600.

Adding to 235623140 its reverse (41326532), we get a palindrome (276949672).

The spelling of 235623140 in words is "two hundred thirty-five million, six hundred twenty-three thousand, one hundred forty".