280798394 has 8 divisors (see below), whose sum is σ = 425287200. Its totient is φ = 139035996.

The previous prime is 280798393. The next prime is 280798409. The reversal of 280798394 is 493897082.

It is a happy number.

280798394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (280798393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681344 + ... + 681755.

It is an arithmetic number, because the mean of its divisors is an integer number (53160900).

Almost surely, 2^280798394 is an apocalyptic number.

280798394 is a deficient number, since it is larger than the sum of its proper divisors (144488806).

280798394 is a wasteful number, since it uses less digits than its factorization.

280798394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363204.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 280798394 is about 16757.0401324339. The cubic root of 280798394 is about 654.8344814176.

The spelling of 280798394 in words is "two hundred eighty million, seven hundred ninety-eight thousand, three hundred ninety-four".