22130405 has 8 divisors (see below), whose sum is σ = 28970784. Its totient is φ = 16094800.

The previous prime is 22130401. The next prime is 22130411. The reversal of 22130405 is 50403122.

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

It is not a de Polignac number, because 22130405 - 2² = 22130401 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22130401) 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, 201131 + ... + 201240.

It is an arithmetic number, because the mean of its divisors is an integer number (3621348).

Almost surely, 2^22130405 is an apocalyptic number.

It is an amenable number.

22130405 is a deficient number, since it is larger than the sum of its proper divisors (6840379).

22130405 is a wasteful number, since it uses less digits than its factorization.

22130405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402387.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 22130405 is about 4704.2964404893. The cubic root of 22130405 is about 280.7564790317.

Adding to 22130405 its reverse (50403122), we get a palindrome (72533527).

The spelling of 22130405 in words is "twenty-two million, one hundred thirty thousand, four hundred five".