23024340 has 36 divisors (see below), whose sum is σ = 69841044. Its totient is φ = 6139776.

The previous prime is 23024327. The next prime is 23024363. The reversal of 23024340 is 4342032.

23024340 is a `hidden beast` number, since 230 + 2 + 434 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10150596 + 12873744 = 3186^2 + 3588^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63777 + ... + 64136.

It is an arithmetic number, because the mean of its divisors is an integer number (1940029).

Almost surely, 2^23024340 is an apocalyptic number.

23024340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23024340 is an abundant number, since it is smaller than the sum of its proper divisors (46816704).

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

23024340 is a wasteful number, since it uses less digits than its factorization.

23024340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127928 (or 127923 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 23024340 is about 4798.3684727207. The cubic root of 23024340 is about 284.4869810564.

Adding to 23024340 its reverse (4342032), we get a palindrome (27366372).

The spelling of 23024340 in words is "twenty-three million, twenty-four thousand, three hundred forty".