280338007 has 16 divisors (see below), whose sum is σ = 310668480. Its totient is φ = 251615232.

The previous prime is 280338001. The next prime is 280338013. The reversal of 280338007 is 700833082.

It is an interprime number because it is at equal distance from previous prime (280338001) and next prime (280338013).

It is not a de Polignac number, because 280338007 - 2⁷ = 280337879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 280338007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280338001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159043 + ... + 160795.

It is an arithmetic number, because the mean of its divisors is an integer number (19416780).

Almost surely, 2^280338007 is an apocalyptic number.

280338007 is a deficient number, since it is larger than the sum of its proper divisors (30330473).

280338007 is a wasteful number, since it uses less digits than its factorization.

280338007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 280338007 is about 16743.2973753679. The cubic root of 280338007 is about 654.4764045876.

The spelling of 280338007 in words is "two hundred eighty million, three hundred thirty-eight thousand, seven".