578428389 has 144 divisors (see below), whose sum is σ = 1126794240. Its totient is φ = 282381120.

The previous prime is 578428373. The next prime is 578428391. The reversal of 578428389 is 983824875.

It is a happy number.

It is not a de Polignac number, because 578428389 - 2⁴ = 578428373 is a prime.

It is a super-2 number, since 2×578428389² = 669158802402270642, which contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

Its product of digits (3870720) is a multiple of the sum of its prime factors (180).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578428399) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 9803842 + ... + 9803900.

It is an arithmetic number, because the mean of its divisors is an integer number (7824960).

Almost surely, 2^578428389 is an apocalyptic number.

578428389 is a gapful number since it is divisible by the number (59) formed by its first and last digit.

It is an amenable number.

578428389 is a deficient number, since it is larger than the sum of its proper divisors (548365851).

578428389 is a wasteful number, since it uses less digits than its factorization.

578428389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 170 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 578428389 is about 24050.5382268256. The cubic root of 578428389 is about 833.2011613133.

The spelling of 578428389 in words is "five hundred seventy-eight million, four hundred twenty-eight thousand, three hundred eighty-nine".