23243436 has 48 divisors (see below), whose sum is σ = 61027680. Its totient is φ = 7744896.

The previous prime is 23243417. The next prime is 23243443. The reversal of 23243436 is 63434232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7420 + ... + 10076.

It is an arithmetic number, because the mean of its divisors is an integer number (1271410).

Almost surely, 2^23243436 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 23243436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30513840).

23243436 is an abundant number, since it is smaller than the sum of its proper divisors (37784244).

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

23243436 is an equidigital number, since it uses as much as digits as its factorization.

23243436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682 (or 2662 counting only the distinct ones).

The product of its digits is 10368, while the sum is 27.

The square root of 23243436 is about 4821.1446773562. The cubic root of 23243436 is about 285.3865115944.

Adding to 23243436 its reverse (63434232), we get a palindrome (86677668).

The spelling of 23243436 in words is "twenty-three million, two hundred forty-three thousand, four hundred thirty-six".