22620413 has 4 divisors (see below), whose sum is σ = 22665888. Its totient is φ = 22574940.

The previous prime is 22620407. The next prime is 22620419. The reversal of 22620413 is 31402622.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31402622 = 2 ⋅15701311.

It is an interprime number because it is at equal distance from previous prime (22620407) and next prime (22620419).

It is a cyclic number.

It is not a de Polignac number, because 22620413 - 2⁶ = 22620349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22620419) 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, 21983 + ... + 22988.

It is an arithmetic number, because the mean of its divisors is an integer number (5666472).

Almost surely, 2^22620413 is an apocalyptic number.

It is an amenable number.

22620413 is a deficient number, since it is larger than the sum of its proper divisors (45475).

22620413 is an equidigital number, since it uses as much as digits as its factorization.

22620413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45474.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 22620413 is about 4756.0921984335. The cubic root of 22620413 is about 282.8135261381.

The spelling of 22620413 in words is "twenty-two million, six hundred twenty thousand, four hundred thirteen".