578272020 has 72 divisors (see below), whose sum is σ = 1654724064. Its totient is φ = 150890304.

The previous prime is 578271989. The next prime is 578272081. The reversal of 578272020 is 20272875.

It is a super-2 number, since 2×578272020² = 668797058229760800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 130359 + ... + 134721.

Almost surely, 2^578272020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 578272020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (827362032).

578272020 is an abundant number, since it is smaller than the sum of its proper divisors (1076452044).

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

578272020 is a wasteful number, since it uses less digits than its factorization.

578272020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4469 (or 4420 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 578272020 is about 24047.2871650837. The cubic root of 578272020 is about 833.1260736119.

The spelling of 578272020 in words is "five hundred seventy-eight million, two hundred seventy-two thousand, twenty".