23212746 has 12 divisors (see below), whose sum is σ = 50294322. Its totient is φ = 7737576.

The previous prime is 23212741. The next prime is 23212751. The reversal of 23212746 is 64721232.

It is an interprime number because it is at equal distance from previous prime (23212741) and next prime (23212751).

It can be written as a sum of positive squares in only one way, i.e., 17264025 + 5948721 = 4155^2 + 2439^2 .

It is not an unprimeable number, because it can be changed into a prime (23212741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 644781 + ... + 644816.

Almost surely, 2^23212746 is an apocalyptic number.

23212746 is an abundant number, since it is smaller than the sum of its proper divisors (27081576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23212746 is a wasteful number, since it uses less digits than its factorization.

23212746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289605 (or 1289602 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 23212746 is about 4817.9607719449. The cubic root of 23212746 is about 285.2608507454.

Adding to 23212746 its reverse (64721232), we get a palindrome (87933978).

The spelling of 23212746 in words is "twenty-three million, two hundred twelve thousand, seven hundred forty-six".