23049136 has 40 divisors (see below), whose sum is σ = 49063824. Its totient is φ = 10402560.

The previous prime is 23049121. The next prime is 23049137. The reversal of 23049136 is 63194032.

It is not an unprimeable number, because it can be changed into a prime (23049137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30070 + ... + 30826.

Almost surely, 2^23049136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23049136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24531912).

23049136 is an abundant number, since it is smaller than the sum of its proper divisors (26014688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23049136 is a wasteful number, since it uses less digits than its factorization.

23049136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 949 (or 943 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 23049136 is about 4800.9515723448. The cubic root of 23049136 is about 284.5890702423.

Subtracting 23049136 from its reverse (63194032), we obtain a square (40144896 = 6336²).

The spelling of 23049136 in words is "twenty-three million, forty-nine thousand, one hundred thirty-six".