280095740 has 48 divisors (see below), whose sum is σ = 626657472. Its totient is φ = 104795136.

The previous prime is 280095737. The next prime is 280095773. The reversal of 280095740 is 47590082.

It is a happy number.

It is a super-2 number, since 2×280095740² = 156907247132295200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 280095740.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54314 + ... + 59246.

It is an arithmetic number, because the mean of its divisors is an integer number (13055364).

Almost surely, 2^280095740 is an apocalyptic number.

280095740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 280095740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313328736).

280095740 is an abundant number, since it is smaller than the sum of its proper divisors (346561732).

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

280095740 is a wasteful number, since it uses less digits than its factorization.

280095740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5126 (or 5124 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 280095740 is about 16736.0610658542. The cubic root of 280095740 is about 654.2878182761.

The spelling of 280095740 in words is "two hundred eighty million, ninety-five thousand, seven hundred forty".