23385740 has 60 divisors (see below), whose sum is σ = 57409296. Its totient is φ = 8001504.

The previous prime is 23385737. The next prime is 23385781. The reversal of 23385740 is 4758332.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23385697 and 23385706.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 47777 + ... + 48263.

Almost surely, 2^23385740 is an apocalyptic number.

23385740 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 23385740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28704648).

23385740 is an abundant number, since it is smaller than the sum of its proper divisors (34023556).

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

23385740 is an equidigital number, since it uses as much as digits as its factorization.

23385740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 23385740 is about 4835.8804782583. The cubic root of 23385740 is about 285.9677372445.

The spelling of 23385740 in words is "twenty-three million, three hundred eighty-five thousand, seven hundred forty".