23033040 has 40 divisors (see below), whose sum is σ = 71403168. Its totient is φ = 6142080.

The previous prime is 23033029. The next prime is 23033063. The reversal of 23033040 is 4033032.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47746 + ... + 48225.

Almost surely, 2^23033040 is an apocalyptic number.

23033040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23033040 is an abundant number, since it is smaller than the sum of its proper divisors (48370128).

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

23033040 is a wasteful number, since it uses less digits than its factorization.

23033040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95987 (or 95981 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 23033040 is about 4799.2749452391. The cubic root of 23033040 is about 284.5228087219.

Adding to 23033040 its reverse (4033032), we get a palindrome (27066072).

The spelling of 23033040 in words is "twenty-three million, thirty-three thousand, forty".