235409130 has 72 divisors (see below), whose sum is σ = 672795396. Its totient is φ = 57066240.

The previous prime is 235409089. The next prime is 235409131. The reversal of 235409130 is 31904532.

235409130 is a `hidden beast` number, since 2 + 3 + 540 + 91 + 30 = 666.

235409130 is digitally balanced in base 3, 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 221503689 + 13905441 = 14883^2 + 3729^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 235409094 and 235409103.

It is not an unprimeable number, because it can be changed into a prime (235409131) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 82 + ... + 21698.

Almost surely, 2^235409130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 235409130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336397698).

235409130 is an abundant number, since it is smaller than the sum of its proper divisors (437386266).

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

235409130 is a wasteful number, since it uses less digits than its factorization.

235409130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21652 (or 21638 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 235409130 is about 15343.0482629756. The cubic root of 235409130 is about 617.4584913118.

The spelling of 235409130 in words is "two hundred thirty-five million, four hundred nine thousand, one hundred thirty".