18060090400 has 144 divisors (see below), whose sum is σ = 48281159808. Its totient is φ = 6542208000.

The previous prime is 18060090397. The next prime is 18060090443. The reversal of 18060090400 is 409006081.

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, 2381014 + ... + 2388586.

It is an arithmetic number, because the mean of its divisors is an integer number (335285832).

Almost surely, 2^18060090400 is an apocalyptic number.

18060090400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18060090400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24140579904).

18060090400 is an abundant number, since it is smaller than the sum of its proper divisors (30221069408).

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

18060090400 is a wasteful number, since it uses less digits than its factorization.

18060090400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7875 (or 7862 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

Adding to 18060090400 its reverse (409006081), we get a palindrome (18469096481).

The spelling of 18060090400 in words is "eighteen billion, sixty million, ninety thousand, four hundred".