23308436 has 6 divisors (see below), whose sum is σ = 40789770. Its totient is φ = 11654216.

The previous prime is 23308427. The next prime is 23308447. The reversal of 23308436 is 63480332.

It can be written as a sum of positive squares in only one way, i.e., 22619536 + 688900 = 4756^2 + 830^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23308399 and 23308408.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 2913551 + ... + 2913558.

It is an arithmetic number, because the mean of its divisors is an integer number (6798295).

Almost surely, 2^23308436 is an apocalyptic number.

It is an amenable number.

23308436 is a deficient number, since it is larger than the sum of its proper divisors (17481334).

23308436 is a wasteful number, since it uses less digits than its factorization.

23308436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5827113 (or 5827111 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 23308436 is about 4827.8811087267. The cubic root of 23308436 is about 285.6522906920.

Adding to 23308436 its reverse (63480332), we get a palindrome (86788768).

The spelling of 23308436 in words is "twenty-three million, three hundred eight thousand, four hundred thirty-six".