280028000336 has 20 divisors (see below), whose sum is σ = 620062000992. Its totient is φ = 120012000096.

The previous prime is 280028000323. The next prime is 280028000339. The reversal of 280028000336 is 633000820082.

It is a happy number.

It is a super-2 number, since 2×280028000336² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280028000339) 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, 1250124890 + ... + 1250125113.

Almost surely, 2^280028000336 is an apocalyptic number.

It is an amenable number.

280028000336 is an abundant number, since it is smaller than the sum of its proper divisors (340034000656).

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

280028000336 is a wasteful number, since it uses less digits than its factorization.

280028000336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2500250018 (or 2500250012 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 280028000336 in words is "two hundred eighty billion, twenty-eight million, three hundred thirty-six", and thus it is an aban number.