23400554240 has 72 divisors (see below), whose sum is σ = 64059041760. Its totient is φ = 8023044096.

The previous prime is 23400554239. The next prime is 23400554249. The reversal of 23400554240 is 4245500432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23400554249) 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, 1296875 + ... + 1314794.

Almost surely, 2^23400554240 is an apocalyptic number.

23400554240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23400554240 is an abundant number, since it is smaller than the sum of its proper divisors (40658487520).

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

23400554240 is an equidigital number, since it uses as much as digits as its factorization.

23400554240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611697 (or 2611683 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 29.

The spelling of 23400554240 in words is "twenty-three billion, four hundred million, five hundred fifty-four thousand, two hundred forty".