233270640 has 60 divisors (see below), whose sum is σ = 783402984. Its totient is φ = 62205312.

The previous prime is 233270603. The next prime is 233270641. The reversal of 233270640 is 46072332.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233270641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161274 + ... + 162713.

Almost surely, 2^233270640 is an apocalyptic number.

233270640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233270640 is an abundant number, since it is smaller than the sum of its proper divisors (550132344).

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

233270640 is a wasteful number, since it uses less digits than its factorization.

233270640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324006 (or 323997 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 233270640 is about 15273.2000576173. The cubic root of 233270640 is about 615.5831074760.

The spelling of 233270640 in words is "two hundred thirty-three million, two hundred seventy thousand, six hundred forty".