23214636 has 72 divisors (see below), whose sum is σ = 62506080. Its totient is φ = 7262112.

The previous prime is 23214617. The next prime is 23214649. The reversal of 23214636 is 63641232.

23214636 is a `hidden beast` number, since 2 + 3 + 21 + 4 + 636 = 666.

It is a super-2 number, since 2×23214636² = 1077838649224992, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

Its product of digits (5184) is a multiple of the sum of its prime divisors (81).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 437986 + ... + 438038.

It is an arithmetic number, because the mean of its divisors is an integer number (868140).

Almost surely, 2^23214636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23214636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31253040).

23214636 is an abundant number, since it is smaller than the sum of its proper divisors (39291444).

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

23214636 is a wasteful number, since it uses less digits than its factorization.

23214636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 81 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 23214636 is about 4818.1569090265. The cubic root of 23214636 is about 285.2685925894.

Adding to 23214636 its reverse (63641232), we get a palindrome (86855868).

The spelling of 23214636 in words is "twenty-three million, two hundred fourteen thousand, six hundred thirty-six".