23244390 has 48 divisors (see below), whose sum is σ = 65087568. Its totient is φ = 5721408.

The previous prime is 23244383. The next prime is 23244413. The reversal of 23244390 is 9344232.

It is a happy number.

23244390 is a `hidden beast` number, since 232 + 44 + 390 = 666.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 8764 + ... + 11103.

It is an arithmetic number, because the mean of its divisors is an integer number (1355991).

Almost surely, 2^23244390 is an apocalyptic number.

23244390 is an abundant number, since it is smaller than the sum of its proper divisors (41843178).

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

23244390 is a wasteful number, since it uses less digits than its factorization.

23244390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19893 (or 19890 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 23244390 is about 4821.2436155001. The cubic root of 23244390 is about 285.3904159943.

The spelling of 23244390 in words is "twenty-three million, two hundred forty-four thousand, three hundred ninety".