23384340 has 144 divisors (see below), whose sum is σ = 82572672. Its totient is φ = 5246208.

The previous prime is 23384329. The next prime is 23384351. The reversal of 23384340 is 4348332.

It is an interprime number because it is at equal distance from previous prime (23384329) and next prime (23384351).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84282 + ... + 84558.

Almost surely, 2^23384340 is an apocalyptic number.

23384340 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 23384340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41286336).

23384340 is an abundant number, since it is smaller than the sum of its proper divisors (59188332).

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

23384340 is a wasteful number, since it uses less digits than its factorization.

23384340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366 (or 361 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 23384340 is about 4835.7357247889. The cubic root of 23384340 is about 285.9620305928.

The spelling of 23384340 in words is "twenty-three million, three hundred eighty-four thousand, three hundred forty".