280069332 has 12 divisors (see below), whose sum is σ = 653495136. Its totient is φ = 93356440.

The previous prime is 280069303. The next prime is 280069333. The reversal of 280069332 is 233960082.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 280069293 and 280069302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280069333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11669544 + ... + 11669567.

It is an arithmetic number, because the mean of its divisors is an integer number (54457928).

Almost surely, 2^280069332 is an apocalyptic number.

It is an amenable number.

280069332 is an abundant number, since it is smaller than the sum of its proper divisors (373425804).

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

280069332 is a wasteful number, since it uses less digits than its factorization.

280069332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23339118 (or 23339116 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 280069332 is about 16735.2720922010. The cubic root of 280069332 is about 654.2672550980.

The spelling of 280069332 in words is "two hundred eighty million, sixty-nine thousand, three hundred thirty-two".