23040404 has 6 divisors (see below), whose sum is σ = 40320714. Its totient is φ = 11520200.

The previous prime is 23040403. The next prime is 23040427. The reversal of 23040404 is 40404032.

It can be written as a sum of positive squares in only one way, i.e., 23020804 + 19600 = 4798^2 + 140^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23040403) by changing a digit.

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 as a sum of consecutive naturals, namely, 2880047 + ... + 2880054.

It is an arithmetic number, because the mean of its divisors is an integer number (6720119).

Almost surely, 2^23040404 is an apocalyptic number.

It is an amenable number.

23040404 is a deficient number, since it is larger than the sum of its proper divisors (17280310).

23040404 is a wasteful number, since it uses less digits than its factorization.

23040404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760105 (or 5760103 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 23040404 is about 4800.0420831489. The cubic root of 23040404 is about 284.5531275264.

Adding to 23040404 its reverse (40404032), we get a palindrome (63444436).

The spelling of 23040404 in words is "twenty-three million, forty thousand, four hundred four".