23513434 has 12 divisors (see below), whose sum is σ = 41028714. Its totient is φ = 10077144.

The previous prime is 23513417. The next prime is 23513443. The reversal of 23513434 is 43431532.

It can be written as a sum of positive squares in only one way, i.e., 16769025 + 6744409 = 4095^2 + 2597^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23513399 and 23513408.

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 5 ways as a sum of consecutive naturals, for example, 119869 + ... + 120064.

Almost surely, 2^23513434 is an apocalyptic number.

23513434 is a deficient number, since it is larger than the sum of its proper divisors (17515280).

23513434 is a wasteful number, since it uses less digits than its factorization.

23513434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239949 (or 239942 counting only the distinct ones).

The product of its digits is 4320, while the sum is 25.

The square root of 23513434 is about 4849.0652707506. The cubic root of 23513434 is about 286.4872860700.

Adding to 23513434 its reverse (43431532), we get a palindrome (66944966).

The spelling of 23513434 in words is "twenty-three million, five hundred thirteen thousand, four hundred thirty-four".