280472822 has 16 divisors (see below), whose sum is σ = 481064352. Its totient is φ = 120139200.

The previous prime is 280472821. The next prime is 280472867. The reversal of 280472822 is 228274082.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280472821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30572 + ... + 38672.

It is an arithmetic number, because the mean of its divisors is an integer number (30066522).

Almost surely, 2^280472822 is an apocalyptic number.

280472822 is a deficient number, since it is larger than the sum of its proper divisors (200591530).

280472822 is a wasteful number, since it uses less digits than its factorization.

280472822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10583.

The product of its (nonzero) digits is 28672, while the sum is 35.

The square root of 280472822 is about 16747.3228308288. The cubic root of 280472822 is about 654.5813006942.

The spelling of 280472822 in words is "two hundred eighty million, four hundred seventy-two thousand, eight hundred twenty-two".