23440409200 has 120 divisors (see below), whose sum is σ = 64215296208. Its totient is φ = 8145776640.

The previous prime is 23440409197. The next prime is 23440409219. The reversal of 23440409200 is 290404432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44182 + ... + 220981.

Almost surely, 2^23440409200 is an apocalyptic number.

23440409200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23440409200 is an abundant number, since it is smaller than the sum of its proper divisors (40774887008).

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

23440409200 is a wasteful number, since it uses less digits than its factorization.

23440409200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265211 (or 265200 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 23440409200 in words is "twenty-three billion, four hundred forty million, four hundred nine thousand, two hundred".