235218816 has 240 divisors, whose sum is σ = 816053040. Its totient is φ = 67060224.

The previous prime is 235218773. The next prime is 235218829. The reversal of 235218816 is 618812532.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 507801 + ... + 508263.

It is an arithmetic number, because the mean of its divisors is an integer number (3400221).

Almost surely, 2^235218816 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 235218816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408026520).

235218816 is an abundant number, since it is smaller than the sum of its proper divisors (580834224).

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

235218816 is an equidigital number, since it uses as much as digits as its factorization.

235218816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503 (or 475 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 235218816 is about 15336.8450471406. The cubic root of 235218816 is about 617.2920538753.

The spelling of 235218816 in words is "two hundred thirty-five million, two hundred eighteen thousand, eight hundred sixteen".