413278639 has 4 divisors (see below), whose sum is σ = 426610240. Its totient is φ = 399947040.

The previous prime is 413278637. The next prime is 413278693. The reversal of 413278639 is 936872314.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 413278639 - 2¹ = 413278637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 413278595 and 413278604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (413278637) 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, 6665754 + ... + 6665815.

It is an arithmetic number, because the mean of its divisors is an integer number (106652560).

Almost surely, 2^413278639 is an apocalyptic number.

413278639 is a deficient number, since it is larger than the sum of its proper divisors (13331601).

413278639 is a wasteful number, since it uses less digits than its factorization.

413278639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13331600.

The product of its digits is 217728, while the sum is 43.

The square root of 413278639 is about 20329.2557414186. The cubic root of 413278639 is about 744.8708627121.

The spelling of 413278639 in words is "four hundred thirteen million, two hundred seventy-eight thousand, six hundred thirty-nine".