23420405200 has 60 divisors (see below), whose sum is σ = 56824725708. Its totient is φ = 9275392000.

The previous prime is 23420405179. The next prime is 23420405207. The reversal of 23420405200 is 250402432.

It can be written as a sum of positive squares in 6 ways, for example, as 1395470736 + 22024934464 = 37356^2 + 148408^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420405207) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 249457 + ... + 330256.

Almost surely, 2^23420405200 is an apocalyptic number.

23420405200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23420405200 is an abundant number, since it is smaller than the sum of its proper divisors (33404320508).

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

23420405200 is a wasteful number, since it uses less digits than its factorization.

23420405200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579832 (or 579821 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

Adding to 23420405200 its reverse (250402432), we get a palindrome (23670807632).

The spelling of 23420405200 in words is "twenty-three billion, four hundred twenty million, four hundred five thousand, two hundred".