23030940 has 48 divisors (see below), whose sum is σ = 65866752. Its totient is φ = 6010176.

The previous prime is 23030879. The next prime is 23030941. The reversal of 23030940 is 4903032.

23030940 = T₃₂₀ + T₃₂₁ + ... + T₅₅₄.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23030941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1264 + ... + 6903.

It is an arithmetic number, because the mean of its divisors is an integer number (1372224).

Almost surely, 2^23030940 is an apocalyptic number.

23030940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23030940 is an abundant number, since it is smaller than the sum of its proper divisors (42835812).

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

23030940 is a wasteful number, since it uses less digits than its factorization.

23030940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8226 (or 8224 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 23030940 is about 4799.0561572042. The cubic root of 23030940 is about 284.5141614909.

Adding to 23030940 its reverse (4903032), we get a palindrome (27933972).

The spelling of 23030940 in words is "twenty-three million, thirty thousand, nine hundred forty".