233020399 has 4 divisors (see below), whose sum is σ = 234450136. Its totient is φ = 231590664.

The previous prime is 233020379. The next prime is 233020421. The reversal of 233020399 is 993020332.

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

It is a cyclic number.

It is not a de Polignac number, because 233020399 - 2¹³ = 233012207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 233020399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233020379) 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, 714624 + ... + 714949.

It is an arithmetic number, because the mean of its divisors is an integer number (58612534).

Almost surely, 2^233020399 is an apocalyptic number.

233020399 is a deficient number, since it is larger than the sum of its proper divisors (1429737).

233020399 is a wasteful number, since it uses less digits than its factorization.

233020399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1429736.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 233020399 is about 15265.0056993111. The cubic root of 233020399 is about 615.3629065271.

The spelling of 233020399 in words is "two hundred thirty-three million, twenty thousand, three hundred ninety-nine".