22405013 has 8 divisors (see below), whose sum is σ = 23478336. Its totient is φ = 21340000.

The previous prime is 22404989. The next prime is 22405027. The reversal of 22405013 is 31050422.

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 22405013 - 2⁸ = 22404757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22404982 and 22405000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22405043) 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, 3833 + ... + 7713.

It is an arithmetic number, because the mean of its divisors is an integer number (2934792).

Almost surely, 2^22405013 is an apocalyptic number.

22405013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22405013 is a deficient number, since it is larger than the sum of its proper divisors (1073323).

22405013 is a wasteful number, since it uses less digits than its factorization.

22405013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155.

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

The square root of 22405013 is about 4733.3933916378. The cubic root of 22405013 is about 281.9129763501.

Adding to 22405013 its reverse (31050422), we get a palindrome (53455435).

The spelling of 22405013 in words is "twenty-two million, four hundred five thousand, thirteen".