581674216 has 16 divisors (see below), whose sum is σ = 1117240740. Its totient is φ = 283743360.

The previous prime is 581674213. The next prime is 581674231. The reversal of 581674216 is 612476185.

It can be written as a sum of positive squares in 2 ways, for example, as 470456100 + 111218116 = 21690^2 + 10546^2 .

It is not an unprimeable number, because it can be changed into a prime (581674211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 886371 + ... + 887026.

Almost surely, 2^581674216 is an apocalyptic number.

It is an amenable number.

581674216 is a deficient number, since it is larger than the sum of its proper divisors (535566524).

581674216 is a wasteful number, since it uses less digits than its factorization.

581674216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773444 (or 1773440 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 581674216 is about 24117.9231278317. The cubic root of 581674216 is about 834.7567465251.

The spelling of 581674216 in words is "five hundred eighty-one million, six hundred seventy-four thousand, two hundred sixteen".