581220196 has 24 divisors (see below), whose sum is σ = 1031184000. Its totient is φ = 286613184.

The previous prime is 581220179. The next prime is 581220221. The reversal of 581220196 is 691022185.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154425 + ... + 158143.

It is an arithmetic number, because the mean of its divisors is an integer number (42966000).

Almost surely, 2^581220196 is an apocalyptic number.

It is an amenable number.

581220196 is a deficient number, since it is larger than the sum of its proper divisors (449963804).

581220196 is a wasteful number, since it uses less digits than its factorization.

581220196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4251 (or 4249 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 581220196 is about 24108.5087883925. The cubic root of 581220196 is about 834.5395029790.

The spelling of 581220196 in words is "five hundred eighty-one million, two hundred twenty thousand, one hundred ninety-six".