281438983000 has 128 divisors (see below), whose sum is σ = 772990807680. Its totient is φ = 93885350400.

The previous prime is 281438982989. The next prime is 281438983003. The reversal of 281438983000 is 389834182.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (281438983003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284319 + ... + 802318.

It is an arithmetic number, because the mean of its divisors is an integer number (6038990685).

Almost surely, 2^281438983000 is an apocalyptic number.

281438983000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

281438983000 is an abundant number, since it is smaller than the sum of its proper divisors (491551824680).

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

281438983000 is a wasteful number, since it uses less digits than its factorization.

281438983000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086702 (or 1086688 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 281438983000 in words is "two hundred eighty-one billion, four hundred thirty-eight million, nine hundred eighty-three thousand".