233520401 has 8 divisors (see below), whose sum is σ = 241148160. Its totient is φ = 225992592.

The previous prime is 233520377. The next prime is 233520421. The reversal of 233520401 is 104025332.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 233520401 - 2⁶ = 233520337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233520421) 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, 20225 + ... + 29598.

It is an arithmetic number, because the mean of its divisors is an integer number (30143520).

Almost surely, 2^233520401 is an apocalyptic number.

It is an amenable number.

233520401 is a deficient number, since it is larger than the sum of its proper divisors (7627759).

233520401 is a wasteful number, since it uses less digits than its factorization.

233520401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49975.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 233520401 is about 15281.3743164677. The cubic root of 233520401 is about 615.8027290746.

Adding to 233520401 its reverse (104025332), we get a palindrome (337545733).

The spelling of 233520401 in words is "two hundred thirty-three million, five hundred twenty thousand, four hundred one".