233742381 has 8 divisors (see below), whose sum is σ = 314742624. Its totient is φ = 154285200.

The previous prime is 233742371. The next prime is 233742419. The reversal of 233742381 is 183247332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 233742381 - 2¹⁴ = 233725997 is a prime.

It is a super-2 number, since 2×233742381² = 109271001351098322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (233742371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385411 + ... + 386016.

It is an arithmetic number, because the mean of its divisors is an integer number (39342828).

Almost surely, 2^233742381 is an apocalyptic number.

It is an amenable number.

233742381 is a deficient number, since it is larger than the sum of its proper divisors (81000243).

233742381 is a wasteful number, since it uses less digits than its factorization.

233742381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771531.

The product of its digits is 24192, while the sum is 33.

The square root of 233742381 is about 15288.6356814465. The cubic root of 233742381 is about 615.9977906889.

The spelling of 233742381 in words is "two hundred thirty-three million, seven hundred forty-two thousand, three hundred eighty-one".