233993536 has 56 divisors (see below), whose sum is σ = 553760640. Its totient is φ = 95918592.

The previous prime is 233993503. The next prime is 233993567. The reversal of 233993536 is 635399332.

It is a happy number.

233993536 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 233993492 and 233993501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1051 + ... + 21658.

Almost surely, 2^233993536 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 233993536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276880320).

233993536 is an abundant number, since it is smaller than the sum of its proper divisors (319767104).

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

233993536 is a wasteful number, since it uses less digits than its factorization.

233993536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22751 (or 22741 counting only the distinct ones).

The product of its digits is 393660, while the sum is 43.

The square root of 233993536 is about 15296.8472568696. The cubic root of 233993536 is about 616.2183405460.

The spelling of 233993536 in words is "two hundred thirty-three million, nine hundred ninety-three thousand, five hundred thirty-six".