280380003 has 8 divisors (see below), whose sum is σ = 374255808. Its totient is φ = 186712104.

The previous prime is 280379989. The next prime is 280380013. The reversal of 280380003 is 300083082.

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

It is not a de Polignac number, because 280380003 - 2⁴ = 280379987 is a prime.

It is a super-2 number, since 2×280380003² = 157225892164560018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (280380013) 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, 48801 + ... + 54242.

It is an arithmetic number, because the mean of its divisors is an integer number (46781976).

Almost surely, 2^280380003 is an apocalyptic number.

280380003 is a deficient number, since it is larger than the sum of its proper divisors (93875805).

280380003 is a wasteful number, since it uses less digits than its factorization.

280380003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103953.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 280380003 is about 16744.5514421856. The cubic root of 280380003 is about 654.5090842077.

The spelling of 280380003 in words is "two hundred eighty million, three hundred eighty thousand, three".