280081152 has 180 divisors, whose sum is σ = 900259360. Its totient is φ = 86095872.

The previous prime is 280081141. The next prime is 280081163. The reversal of 280081152 is 251180082.

It is an interprime number because it is at equal distance from previous prime (280081141) and next prime (280081163).

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 269049 + ... + 270087.

Almost surely, 2^280081152 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 280081152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450129680).

280081152 is an abundant number, since it is smaller than the sum of its proper divisors (620178208).

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

280081152 is a wasteful number, since it uses less digits than its factorization.

280081152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1080 (or 1057 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 280081152 is about 16735.6252348097. The cubic root of 280081152 is about 654.2764591644.

The spelling of 280081152 in words is "two hundred eighty million, eighty-one thousand, one hundred fifty-two".