23139484 has 6 divisors (see below), whose sum is σ = 40494104. Its totient is φ = 11569740.

The previous prime is 23139481. The next prime is 23139491. The reversal of 23139484 is 48493132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23139481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2892432 + ... + 2892439.

Almost surely, 2^23139484 is an apocalyptic number.

It is an amenable number.

23139484 is a deficient number, since it is larger than the sum of its proper divisors (17354620).

23139484 is a wasteful number, since it uses less digits than its factorization.

23139484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5784875 (or 5784873 counting only the distinct ones).

The product of its digits is 20736, while the sum is 34.

The square root of 23139484 is about 4810.3517542899. The cubic root of 23139484 is about 284.9604295118.

The spelling of 23139484 in words is "twenty-three million, one hundred thirty-nine thousand, four hundred eighty-four".