280463420928 has 80 divisors (see below), whose sum is σ = 747358166016. Its totient is φ = 93464524800.

The previous prime is 280463420921. The next prime is 280463420957. The reversal of 280463420928 is 829024364082.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280463420921) 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, 6816225 + ... + 6857247.

Almost surely, 2^280463420928 is an apocalyptic number.

It is an amenable number.

280463420928 is an abundant number, since it is smaller than the sum of its proper divisors (466894745088).

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

280463420928 is an equidigital number, since it uses as much as digits as its factorization.

280463420928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45495 (or 45479 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 48.

The spelling of 280463420928 in words is "two hundred eighty billion, four hundred sixty-three million, four hundred twenty thousand, nine hundred twenty-eight".