801000280 has 32 divisors (see below), whose sum is σ = 1803288240. Its totient is φ = 320215680.

The previous prime is 801000257. The next prime is 801000281. The reversal of 801000280 is 82000108.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801000281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80542 + ... + 89938.

Almost surely, 2^801000280 is an apocalyptic number.

It is an amenable number.

801000280 is an abundant number, since it is smaller than the sum of its proper divisors (1002287960).

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

801000280 is a wasteful number, since it uses less digits than its factorization.

801000280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11539 (or 11535 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 801000280 is about 28301.9483428262. The cubic root of 801000280 is about 928.7045129511.

Adding to 801000280 its reverse (82000108), we get a palindrome (883000388).

The spelling of 801000280 in words is "eight hundred one million, two hundred eighty", and thus it is an aban number.