581378084 has 24 divisors (see below), whose sum is σ = 1213312128. Its totient is φ = 238328640.

The previous prime is 581378081. The next prime is 581378111. The reversal of 581378084 is 480873185.

It is a super-2 number, since 2×581378084² = 676000953111022112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (581378081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450737 + ... + 452024.

It is an arithmetic number, because the mean of its divisors is an integer number (50554672).

Almost surely, 2^581378084 is an apocalyptic number.

It is an amenable number.

581378084 is an abundant number, since it is smaller than the sum of its proper divisors (631934044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

581378084 is a wasteful number, since it uses less digits than its factorization.

581378084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902795 (or 902793 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 581378084 is about 24111.7830945785. The cubic root of 581378084 is about 834.6150634663.

The spelling of 581378084 in words is "five hundred eighty-one million, three hundred seventy-eight thousand, eighty-four".