23340402420 has 48 divisors (see below), whose sum is σ = 66248387520. Its totient is φ = 6138844416.

The previous prime is 23340402383. The next prime is 23340402443. The reversal of 23340402420 is 2420404332.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2660050 + ... + 2668809.

It is an arithmetic number, because the mean of its divisors is an integer number (1380174740).

Almost surely, 2^23340402420 is an apocalyptic number.

23340402420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23340402420 is an abundant number, since it is smaller than the sum of its proper divisors (42907985100).

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

23340402420 is a wasteful number, since it uses less digits than its factorization.

23340402420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5328944 (or 5328942 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 23340402420 its reverse (2420404332), we get a palindrome (25760806752).

The spelling of 23340402420 in words is "twenty-three billion, three hundred forty million, four hundred two thousand, four hundred twenty".