280052641 has 4 divisors (see below), whose sum is σ = 305511984. Its totient is φ = 254593300.

The previous prime is 280052629. The next prime is 280052659. The reversal of 280052641 is 146250082.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-280052641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280052621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12729655 + ... + 12729676.

It is an arithmetic number, because the mean of its divisors is an integer number (76377996).

Almost surely, 2^280052641 is an apocalyptic number.

It is an amenable number.

280052641 is a deficient number, since it is larger than the sum of its proper divisors (25459343).

280052641 is a wasteful number, since it uses less digits than its factorization.

280052641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25459342.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 280052641 is about 16734.7734074890. The cubic root of 280052641 is about 654.2542576120.

The spelling of 280052641 in words is "two hundred eighty million, fifty-two thousand, six hundred forty-one".