280001413 has 4 divisors (see below), whose sum is σ = 283375008. Its totient is φ = 276627820.

The previous prime is 280001411. The next prime is 280001437. The reversal of 280001413 is 314100082.

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 not a de Polignac number, because 280001413 - 2¹ = 280001411 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280001411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1686673 + ... + 1686838.

It is an arithmetic number, because the mean of its divisors is an integer number (70843752).

Almost surely, 2^280001413 is an apocalyptic number.

It is an amenable number.

280001413 is a deficient number, since it is larger than the sum of its proper divisors (3373595).

280001413 is an equidigital number, since it uses as much as digits as its factorization.

280001413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373594.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 280001413 is about 16733.2427520789. The cubic root of 280001413 is about 654.2143625160.

Adding to 280001413 its reverse (314100082), we get a palindrome (594101495).

The spelling of 280001413 in words is "two hundred eighty million, one thousand, four hundred thirteen".