23345340 has 24 divisors (see below), whose sum is σ = 65367120. Its totient is φ = 6225408.

The previous prime is 23345339. The next prime is 23345341. The reversal of 23345340 is 4354332.

It is an interprime number because it is at equal distance from previous prime (23345339) and next prime (23345341).

It is a self number, because there is not a number n which added to its sum of digits gives 23345340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23345341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194485 + ... + 194604.

It is an arithmetic number, because the mean of its divisors is an integer number (2723630).

Almost surely, 2^23345340 is an apocalyptic number.

23345340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23345340 is an abundant number, since it is smaller than the sum of its proper divisors (42021780).

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

23345340 is a wasteful number, since it uses less digits than its factorization.

23345340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389101 (or 389099 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 23345340 is about 4831.7015636316. The cubic root of 23345340 is about 285.8029679475.

Adding to 23345340 its reverse (4354332), we get a palindrome (27699672).

The spelling of 23345340 in words is "twenty-three million, three hundred forty-five thousand, three hundred forty".