281380200 has 48 divisors (see below), whose sum is σ = 872280480. Its totient is φ = 75034560.

The previous prime is 281380199. The next prime is 281380207. The reversal of 281380200 is 2083182.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (281380207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233884 + ... + 235083.

It is an arithmetic number, because the mean of its divisors is an integer number (18172510).

Almost surely, 2^281380200 is an apocalyptic number.

281380200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

281380200 is an abundant number, since it is smaller than the sum of its proper divisors (590900280).

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

281380200 is a wasteful number, since it uses less digits than its factorization.

281380200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468986 (or 468977 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 281380200 is about 16774.3911961060. The cubic root of 281380200 is about 655.2864353341.

The spelling of 281380200 in words is "two hundred eighty-one million, three hundred eighty thousand, two hundred".