281420 has 12 divisors (see below), whose sum is σ = 591024. Its totient is φ = 112560.

The previous prime is 281419. The next prime is 281423. The reversal of 281420 is 24182.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 281420.

It is not an unprimeable number, because it can be changed into a prime (281423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7016 + ... + 7055.

It is an arithmetic number, because the mean of its divisors is an integer number (49252).

2²⁸¹⁴²⁰ is an apocalyptic number.

281420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

281420 is an abundant number, since it is smaller than the sum of its proper divisors (309604).

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

281420 is a wasteful number, since it uses less digits than its factorization.

281420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14080 (or 14078 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 281420 is about 530.4903392146. The cubic root of 281420 is about 65.5317329679.

It can be divided in two parts, 2814 and 20, that multiplied together give a triangular number (56280 = T₃₃₅).

The spelling of 281420 in words is "two hundred eighty-one thousand, four hundred twenty".