233066440 has 32 divisors (see below), whose sum is σ = 534298680. Its totient is φ = 91466752.

The previous prime is 233066419. The next prime is 233066497. The reversal of 233066440 is 44660332.

It can be written as a sum of positive squares in 4 ways, for example, as 176305284 + 56761156 = 13278^2 + 7534^2 .

It is a junction number, because it is equal to n+sod(n) for n = 233066399 and 233066408.

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, 52849 + ... + 57088.

Almost surely, 2^233066440 is an apocalyptic number.

233066440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233066440 is an abundant number, since it is smaller than the sum of its proper divisors (301232240).

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

233066440 is a wasteful number, since it uses less digits than its factorization.

233066440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110001 (or 109997 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 233066440 is about 15266.5136819118. The cubic root of 233066440 is about 615.4034323894.

The spelling of 233066440 in words is "two hundred thirty-three million, sixty-six thousand, four hundred forty".