23102772 has 72 divisors (see below), whose sum is σ = 67747008. Its totient is φ = 5998080.

The previous prime is 23102771. The next prime is 23102789. The reversal of 23102772 is 27720132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23102771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9028 + ... + 11300.

Almost surely, 2^23102772 is an apocalyptic number.

23102772 is a gapful number since it is divisible by the number (22) 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 23102772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33873504).

23102772 is an abundant number, since it is smaller than the sum of its proper divisors (44644236).

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

23102772 is a wasteful number, since it uses less digits than its factorization.

23102772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309 (or 2296 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 23102772 is about 4806.5343023846. The cubic root of 23102772 is about 284.8096482076.

The spelling of 23102772 in words is "twenty-three million, one hundred two thousand, seven hundred seventy-two".