23081930 has 8 divisors (see below), whose sum is σ = 41547492. Its totient is φ = 9232768.

The previous prime is 23081911. The next prime is 23081951. The reversal of 23081930 is 3918032.

It can be written as a sum of positive squares in 2 ways, for example, as 23030401 + 51529 = 4799^2 + 227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23081930.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1154087 + ... + 1154106.

Almost surely, 2^23081930 is an apocalyptic number.

23081930 is a deficient number, since it is larger than the sum of its proper divisors (18465562).

23081930 is a wasteful number, since it uses less digits than its factorization.

23081930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2308200.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 23081930 is about 4804.3657229649. The cubic root of 23081930 is about 284.7239761128.

Adding to 23081930 its reverse (3918032), we get a palindrome (26999962).

The spelling of 23081930 in words is "twenty-three million, eighty-one thousand, nine hundred thirty".