23933340 has 192 divisors, whose sum is σ = 81285120. Its totient is φ = 5829120.

The previous prime is 23933321. The next prime is 23933341. The reversal of 23933340 is 4333932.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23933341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 509197 + ... + 509243.

It is an arithmetic number, because the mean of its divisors is an integer number (423360).

Almost surely, 2^23933340 is an apocalyptic number.

23933340 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 23933340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40642560).

23933340 is an abundant number, since it is smaller than the sum of its proper divisors (57351780).

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

23933340 is a wasteful number, since it uses less digits than its factorization.

23933340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

The square root of 23933340 is about 4892.1712970827. The cubic root of 23933340 is about 288.1826098840.

The spelling of 23933340 in words is "twenty-three million, nine hundred thirty-three thousand, three hundred forty".