578979640 has 16 divisors (see below), whose sum is σ = 1302704280. Its totient is φ = 231591840.

The previous prime is 578979601. The next prime is 578979641. The reversal of 578979640 is 46979875.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (578979641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7237206 + ... + 7237285.

Almost surely, 2^578979640 is an apocalyptic number.

It is an amenable number.

578979640 is an abundant number, since it is smaller than the sum of its proper divisors (723724640).

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

578979640 is a wasteful number, since it uses less digits than its factorization.

578979640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14474502 (or 14474498 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 55.

The square root of 578979640 is about 24061.9957609505. The cubic root of 578979640 is about 833.4657617097.

The spelling of 578979640 in words is "five hundred seventy-eight million, nine hundred seventy-nine thousand, six hundred forty".