235231040 has 112 divisors (see below), whose sum is σ = 647175744. Its totient is φ = 80486400.

The previous prime is 235231019. The next prime is 235231043. The reversal of 235231040 is 40132532.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235231043) 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 15 ways as a sum of consecutive naturals, for example, 57875 + ... + 61805.

Almost surely, 2^235231040 is an apocalyptic number.

235231040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 235231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323587872).

235231040 is an abundant number, since it is smaller than the sum of its proper divisors (411944704).

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

235231040 is a wasteful number, since it uses less digits than its factorization.

235231040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3976 (or 3966 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 235231040 is about 15337.2435593884. The cubic root of 235231040 is about 617.3027469645.

Adding to 235231040 its reverse (40132532), we get a palindrome (275363572).

The spelling of 235231040 in words is "two hundred thirty-five million, two hundred thirty-one thousand, forty".