20235361 has 4 divisors (see below), whose sum is σ = 21300400. Its totient is φ = 19170324.

The previous prime is 20235353. The next prime is 20235373. The reversal of 20235361 is 16353202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20235361 - 2³ = 20235353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20235161) 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, 532491 + ... + 532528.

It is an arithmetic number, because the mean of its divisors is an integer number (5325100).

Almost surely, 2^20235361 is an apocalyptic number.

It is an amenable number.

20235361 is a deficient number, since it is larger than the sum of its proper divisors (1065039).

20235361 is a wasteful number, since it uses less digits than its factorization.

20235361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065038.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 20235361 is about 4498.3731503734. The cubic root of 20235361 is about 272.5023920335.

Adding to 20235361 its reverse (16353202), we get a palindrome (36588563).

The spelling of 20235361 in words is "twenty million, two hundred thirty-five thousand, three hundred sixty-one".