23042534 has 4 divisors (see below), whose sum is σ = 34563804. Its totient is φ = 11521266.

The previous prime is 23042479. The next prime is 23042561. The reversal of 23042534 is 43524032.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5760632 + ... + 5760635.

It is an arithmetic number, because the mean of its divisors is an integer number (8640951).

Almost surely, 2^23042534 is an apocalyptic number.

23042534 is a deficient number, since it is larger than the sum of its proper divisors (11521270).

23042534 is a wasteful number, since it uses less digits than its factorization.

23042534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11521269.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 23042534 is about 4800.2639510760. The cubic root of 23042534 is about 284.5618958838.

Adding to 23042534 its reverse (43524032), we get a palindrome (66566566).

The spelling of 23042534 in words is "twenty-three million, forty-two thousand, five hundred thirty-four".