23305242 has 32 divisors (see below), whose sum is σ = 48605184. Its totient is φ = 7441200.

The previous prime is 23305231. The next prime is 23305277. The reversal of 23305242 is 24250332.

It is a super-4 number, since 4×23305242⁴ (a number of 31 digits) contains 4444 as substring.

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, 19317 + ... + 20487.

It is an arithmetic number, because the mean of its divisors is an integer number (1518912).

Almost surely, 2^23305242 is an apocalyptic number.

23305242 is an abundant number, since it is smaller than the sum of its proper divisors (25299942).

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

23305242 is a wasteful number, since it uses less digits than its factorization.

23305242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 23305242 is about 4827.5503104577. The cubic root of 23305242 is about 285.6392422676.

Adding to 23305242 its reverse (24250332), we get a palindrome (47555574).

The spelling of 23305242 in words is "twenty-three million, three hundred five thousand, two hundred forty-two".