23164380 has 120 divisors (see below), whose sum is σ = 73993920. Its totient is φ = 6065280.

The previous prime is 23164333. The next prime is 23164429. The reversal of 23164380 is 8346132.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 127890 + ... + 128070.

It is an arithmetic number, because the mean of its divisors is an integer number (616616).

Almost surely, 2^23164380 is an apocalyptic number.

23164380 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 23164380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36996960).

23164380 is an abundant number, since it is smaller than the sum of its proper divisors (50829540).

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

23164380 is a wasteful number, since it uses less digits than its factorization.

23164380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 23164380 is about 4812.9388111631. The cubic root of 23164380 is about 285.0625901314.

The spelling of 23164380 in words is "twenty-three million, one hundred sixty-four thousand, three hundred eighty".