581479016 has 64 divisors (see below), whose sum is σ = 1176904080. Its totient is φ = 268369920.

The previous prime is 581479007. The next prime is 581479037. The reversal of 581479016 is 610974185.

It can be written as a sum of positive squares in 8 ways, for example, as 203176516 + 378302500 = 14254^2 + 19450^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2412656 + ... + 2412896.

Almost surely, 2^581479016 is an apocalyptic number.

It is an amenable number.

581479016 is an abundant number, since it is smaller than the sum of its proper divisors (595425064).

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

581479016 is a wasteful number, since it uses less digits than its factorization.

581479016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 41.

The square root of 581479016 is about 24113.8760053211. The cubic root of 581479016 is about 834.6633593432.

The spelling of 581479016 in words is "five hundred eighty-one million, four hundred seventy-nine thousand, sixteen".