280932428016 has 480 divisors, whose sum is σ = 898335360000. Its totient is φ = 81477107712.

The previous prime is 280932428011. The next prime is 280932428017. The reversal of 280932428016 is 610824239082.

280932428016 is a `hidden beast` number, since 280 + 93 + 2 + 4 + 280 + 1 + 6 = 666.

It is a super-2 number, since 2×280932428016² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280932428011) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 469002085 + ... + 469002683.

It is an arithmetic number, because the mean of its divisors is an integer number (1871532000).

Almost surely, 2^280932428016 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 280932428016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (449167680000).

280932428016 is an abundant number, since it is smaller than the sum of its proper divisors (617402931984).

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

280932428016 is a wasteful number, since it uses less digits than its factorization.

280932428016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 280932428016 in words is "two hundred eighty billion, nine hundred thirty-two million, four hundred twenty-eight thousand, sixteen".