23021332 has 24 divisors (see below), whose sum is σ = 42869736. Its totient is φ = 10779648.

The previous prime is 23021291. The next prime is 23021333. The reversal of 23021332 is 23312032.

It can be written as a sum of positive squares in 4 ways, for example, as 9449476 + 13571856 = 3074^2 + 3684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23021333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15118 + ... + 16570.

It is an arithmetic number, because the mean of its divisors is an integer number (1786239).

Almost surely, 2^23021332 is an apocalyptic number.

It is an amenable number.

23021332 is a deficient number, since it is larger than the sum of its proper divisors (19848404).

23021332 is a wasteful number, since it uses less digits than its factorization.

23021332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707 (or 1705 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23021332 is about 4798.0550226107. The cubic root of 23021332 is about 284.4745916443.

Adding to 23021332 its reverse (23312032), we get a palindrome (46333364).

The spelling of 23021332 in words is "twenty-three million, twenty-one thousand, three hundred thirty-two".