232748381 has 4 divisors (see below), whose sum is σ = 232853052. Its totient is φ = 232643712.

The previous prime is 232748317. The next prime is 232748407. The reversal of 232748381 is 183847232.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 172685881 + 60062500 = 13141^2 + 7750^2 .

It is a cyclic number.

It is not a de Polignac number, because 232748381 - 2⁶ = 232748317 is a prime.

It is a super-2 number, since 2×232748381² = 108343617716242322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232741381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48926 + ... + 53471.

It is an arithmetic number, because the mean of its divisors is an integer number (58213263).

Almost surely, 2^232748381 is an apocalyptic number.

It is an amenable number.

232748381 is a deficient number, since it is larger than the sum of its proper divisors (104671).

232748381 is a wasteful number, since it uses less digits than its factorization.

232748381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104670.

The product of its digits is 64512, while the sum is 38.

The square root of 232748381 is about 15256.0932417182. The cubic root of 232748381 is about 615.1233638881.

The spelling of 232748381 in words is "two hundred thirty-two million, seven hundred forty-eight thousand, three hundred eighty-one".