22533401 has 8 divisors (see below), whose sum is σ = 24645600. Its totient is φ = 20431840.

The previous prime is 22533397. The next prime is 22533437. The reversal of 22533401 is 10433522.

It is a happy number.

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

It is not a de Polignac number, because 22533401 - 2² = 22533397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22532401) 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, 2165 + ... + 7053.

It is an arithmetic number, because the mean of its divisors is an integer number (3080700).

Almost surely, 2^22533401 is an apocalyptic number.

It is an amenable number.

22533401 is a deficient number, since it is larger than the sum of its proper divisors (2112199).

22533401 is a wasteful number, since it uses less digits than its factorization.

22533401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5319.

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

The square root of 22533401 is about 4746.9359591214. The cubic root of 22533401 is about 282.4504353486.

Adding to 22533401 its reverse (10433522), we get a palindrome (32966923).

The spelling of 22533401 in words is "twenty-two million, five hundred thirty-three thousand, four hundred one".