235240226136 has 192 divisors, whose sum is σ = 666479340000. Its totient is φ = 76876220160.

The previous prime is 235240226077. The next prime is 235240226159. The reversal of 235240226136 is 631622042532.

235240226136 is a `hidden beast` number, since 2 + 35 + 2 + 4 + 0 + 2 + 2 + 613 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 235240226136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 221715046 + ... + 221716106.

Almost surely, 2^235240226136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 235240226136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (333239670000).

235240226136 is an abundant number, since it is smaller than the sum of its proper divisors (431239113864).

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

235240226136 is a wasteful number, since it uses less digits than its factorization.

235240226136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391 (or 1298 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 235240226136 its reverse (631622042532), we get a palindrome (866862268668).

The spelling of 235240226136 in words is "two hundred thirty-five billion, two hundred forty million, two hundred twenty-six thousand, one hundred thirty-six".