18285839400 has 96 divisors (see below), whose sum is σ = 59669618400. Its totient is φ = 4619577600.

The previous prime is 18285839393. The next prime is 18285839417. The reversal of 18285839400 is 493858281.

It is a self number, because there is not a number n which added to its sum of digits gives 18285839400.

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, 790611 + ... + 813410.

It is an arithmetic number, because the mean of its divisors is an integer number (621558525).

Almost surely, 2^18285839400 is an apocalyptic number.

18285839400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18285839400 is an abundant number, since it is smaller than the sum of its proper divisors (41383779000).

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

18285839400 is a wasteful number, since it uses less digits than its factorization.

18285839400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604059 (or 1604050 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 18285839400 in words is "eighteen billion, two hundred eighty-five million, eight hundred thirty-nine thousand, four hundred".