23400213 has 8 divisors (see below), whose sum is σ = 31926048. Its totient is φ = 15237264.

The previous prime is 23400203. The next prime is 23400239. The reversal of 23400213 is 31200432.

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

It is not a de Polignac number, because 23400213 - 2²⁴ = 6622997 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23400192 and 23400201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23400203) 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, 90570 + ... + 90827.

It is an arithmetic number, because the mean of its divisors is an integer number (3990756).

Almost surely, 2^23400213 is an apocalyptic number.

It is an amenable number.

23400213 is a deficient number, since it is larger than the sum of its proper divisors (8525835).

23400213 is a wasteful number, since it uses less digits than its factorization.

23400213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181443.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 23400213 is about 4837.3766650944. The cubic root of 23400213 is about 286.0267184519.

Adding to 23400213 its reverse (31200432), we get a palindrome (54600645).

The spelling of 23400213 in words is "twenty-three million, four hundred thousand, two hundred thirteen".