23909332 has 6 divisors (see below), whose sum is σ = 41841338. Its totient is φ = 11954664.

The previous prime is 23909317. The next prime is 23909371. The reversal of 23909332 is 23390932.

It can be written as a sum of positive squares in only one way, i.e., 23775376 + 133956 = 4876^2 + 366^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23909294 and 23909303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2988663 + ... + 2988670.

Almost surely, 2^23909332 is an apocalyptic number.

It is an amenable number.

23909332 is a deficient number, since it is larger than the sum of its proper divisors (17932006).

23909332 is a wasteful number, since it uses less digits than its factorization.

23909332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5977337 (or 5977335 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 23909332 is about 4889.7169652241. The cubic root of 23909332 is about 288.0862171140.

Subtracting from 23909332 its reverse (23390932), we obtain a square (518400 = 720²).

The spelling of 23909332 in words is "twenty-three million, nine hundred nine thousand, three hundred thirty-two".