23133432 has 32 divisors (see below), whose sum is σ = 66096000. Its totient is φ = 6609504.

The previous prime is 23133427. The next prime is 23133437. The reversal of 23133432 is 23433132.

It is an interprime number because it is at equal distance from previous prime (23133427) and next prime (23133437).

It is a Harshad number since it is a multiple of its sum of digits (21).

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

It is a junction number, because it is equal to n+sod(n) for n = 23133399 and 23133408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23133437) 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, 68682 + ... + 69017.

It is an arithmetic number, because the mean of its divisors is an integer number (2065500).

Almost surely, 2^23133432 is an apocalyptic number.

It is an amenable number.

23133432 is an abundant number, since it is smaller than the sum of its proper divisors (42962568).

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

23133432 is a wasteful number, since it uses less digits than its factorization.

23133432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137715 (or 137711 counting only the distinct ones).

The product of its digits is 1296, while the sum is 21.

The square root of 23133432 is about 4809.7226531267. The cubic root of 23133432 is about 284.9355840875.

Adding to 23133432 its reverse (23433132), we get a palindrome (46566564).

The spelling of 23133432 in words is "twenty-three million, one hundred thirty-three thousand, four hundred thirty-two".