22035421 has 16 divisors (see below), whose sum is σ = 23889600. Its totient is φ = 20262528.

The previous prime is 22035401. The next prime is 22035427. The reversal of 22035421 is 12453022.

It is a cyclic number.

It is not a de Polignac number, because 22035421 - 2²³ = 13646813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22035427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140275 + ... + 140431.

It is an arithmetic number, because the mean of its divisors is an integer number (1493100).

Almost surely, 2^22035421 is an apocalyptic number.

It is an amenable number.

22035421 is a deficient number, since it is larger than the sum of its proper divisors (1854179).

22035421 is a wasteful number, since it uses less digits than its factorization.

22035421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 22035421 is about 4694.1901324936. The cubic root of 22035421 is about 280.3542327875.

Adding to 22035421 its reverse (12453022), we get a palindrome (34488443).

The spelling of 22035421 in words is "twenty-two million, thirty-five thousand, four hundred twenty-one".