18339122040 has 64 divisors (see below), whose sum is σ = 55191036960. Its totient is φ = 4874995200.

The previous prime is 18339122029. The next prime is 18339122041. The reversal of 18339122040 is 4022193381.

It is a junction number, because it is equal to n+sod(n) for n = 18339121992 and 18339122010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18339122041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203011 + ... + 279090.

Almost surely, 2^18339122040 is an apocalyptic number.

18339122040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18339122040 is an abundant number, since it is smaller than the sum of its proper divisors (36851914920).

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

18339122040 is a wasteful number, since it uses less digits than its factorization.

18339122040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482432 (or 482428 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The spelling of 18339122040 in words is "eighteen billion, three hundred thirty-nine million, one hundred twenty-two thousand, forty".