23049720 has 96 divisors (see below), whose sum is σ = 76705200. Its totient is φ = 5999616.

The previous prime is 23049713. The next prime is 23049721. The reversal of 23049720 is 2794032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23049721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14736 + ... + 16224.

Almost surely, 2^23049720 is an apocalyptic number.

23049720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23049720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38352600).

23049720 is an abundant number, since it is smaller than the sum of its proper divisors (53655480).

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

23049720 is a wasteful number, since it uses less digits than its factorization.

23049720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549 (or 1542 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 23049720 is about 4801.0123932354. The cubic root of 23049720 is about 284.5914737831.

The spelling of 23049720 in words is "twenty-three million, forty-nine thousand, seven hundred twenty".