280454130 has 128 divisors (see below), whose sum is σ = 825811200. Its totient is φ = 67161600.

The previous prime is 280454129. The next prime is 280454131. The reversal of 280454130 is 31454082.

280454130 is a `hidden beast` number, since 2 + 80 + 454 + 130 = 666.

280454130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (280454129) and next prime (280454131).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 280454094 and 280454103.

It is not an unprimeable number, because it can be changed into a prime (280454131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 263800 + ... + 264860.

It is an arithmetic number, because the mean of its divisors is an integer number (6451650).

Almost surely, 2^280454130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 280454130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (412905600).

280454130 is an abundant number, since it is smaller than the sum of its proper divisors (545357070).

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

280454130 is a wasteful number, since it uses less digits than its factorization.

280454130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177 (or 1171 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 280454130 is about 16746.7647621862. The cubic root of 280454130 is about 654.5667589341.

The spelling of 280454130 in words is "two hundred eighty million, four hundred fifty-four thousand, one hundred thirty".