23220413 has 8 divisors (see below), whose sum is σ = 24904800. Its totient is φ = 21582288.

The previous prime is 23220403. The next prime is 23220437. The reversal of 23220413 is 31402232.

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 23220413 - 2¹⁰ = 23219389 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23220391 and 23220400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220403) 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, 10523 + ... + 12536.

It is an arithmetic number, because the mean of its divisors is an integer number (3113100).

Almost surely, 2^23220413 is an apocalyptic number.

It is an amenable number.

23220413 is a deficient number, since it is larger than the sum of its proper divisors (1684387).

23220413 is a wasteful number, since it uses less digits than its factorization.

23220413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23131.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23220413 is about 4818.7563748337. The cubic root of 23220413 is about 285.2922538116.

Adding to 23220413 its reverse (31402232), we get a palindrome (54622645).

The spelling of 23220413 in words is "twenty-three million, two hundred twenty thousand, four hundred thirteen".