23438380 has 96 divisors (see below), whose sum is σ = 60963840. Its totient is φ = 7392000.

The previous prime is 23438377. The next prime is 23438407. The reversal of 23438380 is 8383432.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93255 + ... + 93505.

It is an arithmetic number, because the mean of its divisors is an integer number (635040).

Almost surely, 2^23438380 is an apocalyptic number.

23438380 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 23438380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30481920).

23438380 is an abundant number, since it is smaller than the sum of its proper divisors (37525460).

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

23438380 is a wasteful number, since it uses less digits than its factorization.

23438380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 23438380 is about 4841.3200679154. The cubic root of 23438380 is about 286.1821422772.

The spelling of 23438380 in words is "twenty-three million, four hundred thirty-eight thousand, three hundred eighty".