23023040 has 28 divisors (see below), whose sum is σ = 54824376. Its totient is φ = 9209088.

The previous prime is 23023037. The next prime is 23023057. The reversal of 23023040 is 4032032.

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 3 ways as a sum of consecutive naturals, for example, 35654 + ... + 36293.

Almost surely, 2^23023040 is an apocalyptic number.

23023040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23023040 is an abundant number, since it is smaller than the sum of its proper divisors (31801336).

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

23023040 is an equidigital number, since it uses as much as digits as its factorization.

23023040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71964 (or 71954 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 23023040 is about 4798.2330080979. The cubic root of 23023040 is about 284.4816267221.

Adding to 23023040 its reverse (4032032), we get a palindrome (27055072).

The spelling of 23023040 in words is "twenty-three million, twenty-three thousand, forty".