578122272 has 576 divisors, whose sum is σ = 2260177920. Its totient is φ = 141087744.

The previous prime is 578122241. The next prime is 578122309. The reversal of 578122272 is 272221875.

578122272 is a `hidden beast` number, since 578 + 12 + 2 + 2 + 72 = 666.

It is a super-2 number, since 2×578122272² = 668450722764883968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13444683 + ... + 13444725.

It is an arithmetic number, because the mean of its divisors is an integer number (3923920).

Almost surely, 2^578122272 is an apocalyptic number.

578122272 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 578122272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130088960).

578122272 is an abundant number, since it is smaller than the sum of its proper divisors (1682055648).

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

578122272 is a wasteful number, since it uses less digits than its factorization.

578122272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 87 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 578122272 is about 24044.1733482355. The cubic root of 578122272 is about 833.0541525957.

The spelling of 578122272 in words is "five hundred seventy-eight million, one hundred twenty-two thousand, two hundred seventy-two".