23279130 has 128 divisors (see below), whose sum is σ = 72230400. Its totient is φ = 5225472.

The previous prime is 23279089. The next prime is 23279131. The reversal of 23279130 is 3197232.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23279094 and 23279103.

It is not an unprimeable number, because it can be changed into a prime (23279131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 205954 + ... + 206066.

It is an arithmetic number, because the mean of its divisors is an integer number (564300).

Almost surely, 2^23279130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23279130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36115200).

23279130 is an abundant number, since it is smaller than the sum of its proper divisors (48951270).

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

23279130 is a wasteful number, since it uses less digits than its factorization.

23279130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 23279130 is about 4824.8450752330. The cubic root of 23279130 is about 285.5325223680.

It can be divided in two parts, 23279 and 130, that added together give a square (23409 = 153²).

The spelling of 23279130 in words is "twenty-three million, two hundred seventy-nine thousand, one hundred thirty".