280471464 has 256 divisors, whose sum is σ = 1010688000. Its totient is φ = 69984000.

The previous prime is 280471459. The next prime is 280471481. The reversal of 280471464 is 464174082.

280471464 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 373089 + ... + 373839.

It is an arithmetic number, because the mean of its divisors is an integer number (3948000).

Almost surely, 2^280471464 is an apocalyptic number.

280471464 is a gapful number since it is divisible by the number (24) 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 280471464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (505344000).

280471464 is an abundant number, since it is smaller than the sum of its proper divisors (730216536).

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

280471464 is a wasteful number, since it uses less digits than its factorization.

280471464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 280471464 is about 16747.2822869861. The cubic root of 280471464 is about 654.5802442367.

The spelling of 280471464 in words is "two hundred eighty million, four hundred seventy-one thousand, four hundred sixty-four".