235136280 has 64 divisors (see below), whose sum is σ = 709171200. Its totient is φ = 62368640.

The previous prime is 235136269. The next prime is 235136281. The reversal of 235136280 is 82631532.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235136281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17791 + ... + 28049.

It is an arithmetic number, because the mean of its divisors is an integer number (11080800).

Almost surely, 2^235136280 is an apocalyptic number.

235136280 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 235136280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (354585600).

235136280 is an abundant number, since it is smaller than the sum of its proper divisors (474034920).

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

235136280 is a wasteful number, since it uses less digits than its factorization.

235136280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10464 (or 10460 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 235136280 is about 15334.1540360073. The cubic root of 235136280 is about 617.2198448316.

The spelling of 235136280 in words is "two hundred thirty-five million, one hundred thirty-six thousand, two hundred eighty".