233448489 has 6 divisors (see below), whose sum is σ = 337203386. Its totient is φ = 155632320.

The previous prime is 233448451. The next prime is 233448493. The reversal of 233448489 is 984844332.

It can be written as a sum of positive squares in only one way, i.e., 219632400 + 13816089 = 14820^2 + 3717^2 .

It is a de Polignac number, because none of the positive numbers 2^k-233448489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (233448409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12969352 + ... + 12969369.

Almost surely, 2^233448489 is an apocalyptic number.

It is an amenable number.

233448489 is a deficient number, since it is larger than the sum of its proper divisors (103754897).

233448489 is a wasteful number, since it uses less digits than its factorization.

233448489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25938727 (or 25938724 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The square root of 233448489 is about 15279.0212055616. The cubic root of 233448489 is about 615.7395109688.

The spelling of 233448489 in words is "two hundred thirty-three million, four hundred forty-eight thousand, four hundred eighty-nine".