23009534 has 8 divisors (see below), whose sum is σ = 36544608. Its totient is φ = 10828000.

The previous prime is 23009521. The next prime is 23009611. The reversal of 23009534 is 43590032.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338342 + ... + 338409.

It is an arithmetic number, because the mean of its divisors is an integer number (4568076).

Almost surely, 2^23009534 is an apocalyptic number.

23009534 is a deficient number, since it is larger than the sum of its proper divisors (13535074).

23009534 is a wasteful number, since it uses less digits than its factorization.

23009534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676770.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 23009534 is about 4796.8254085384. The cubic root of 23009534 is about 284.4259873798.

Adding to 23009534 its reverse (43590032), we get a palindrome (66599566).

The spelling of 23009534 in words is "twenty-three million, nine thousand, five hundred thirty-four".