280742943060 has 480 divisors, whose sum is σ = 937202112000. Its totient is φ = 70240794624.

The previous prime is 280742943007. The next prime is 280742943083. The reversal of 280742943060 is 60349247082.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 280742942997 and 280742943015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 248664576 + ... + 248665704.

It is an arithmetic number, because the mean of its divisors is an integer number (1952504400).

Almost surely, 2^280742943060 is an apocalyptic number.

280742943060 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 280742943060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (468601056000).

280742943060 is an abundant number, since it is smaller than the sum of its proper divisors (656459168940).

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

280742943060 is a wasteful number, since it uses less digits than its factorization.

280742943060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 280742943060 in words is "two hundred eighty billion, seven hundred forty-two million, nine hundred forty-three thousand, sixty".