233464644 has 72 divisors (see below), whose sum is σ = 681477888. Its totient is φ = 66009600.

The previous prime is 233464643. The next prime is 233464661. The reversal of 233464644 is 446464332.

233464644 is a `hidden beast` number, since 2 + 3 + 3 + 4 + 6 + 4 + 644 = 666.

233464644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 233464599 and 233464608.

It is not an unprimeable number, because it can be changed into a prime (233464643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19669 + ... + 29219.

Almost surely, 2^233464644 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 233464644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340738944).

233464644 is an abundant number, since it is smaller than the sum of its proper divisors (448013244).

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

233464644 is a wasteful number, since it uses less digits than its factorization.

233464644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9665 (or 9660 counting only the distinct ones).

The product of its digits is 165888, while the sum is 36.

The square root of 233464644 is about 15279.5498624796. The cubic root of 233464644 is about 615.7537140197.

The spelling of 233464644 in words is "two hundred thirty-three million, four hundred sixty-four thousand, six hundred forty-four".