578728440 has 48 divisors (see below), whose sum is σ = 1880868600. Its totient is φ = 154327488.

The previous prime is 578728421. The next prime is 578728453. The reversal of 578728440 is 44827875.

578728440 is a `hidden beast` number, since 578 + 72 + 8 + 4 + 4 + 0 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 803430 + ... + 804149.

Almost surely, 2^578728440 is an apocalyptic number.

It is an amenable number.

578728440 is an abundant number, since it is smaller than the sum of its proper divisors (1302140160).

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

578728440 is a wasteful number, since it uses less digits than its factorization.

578728440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607596 (or 1607589 counting only the distinct ones).

The product of its (nonzero) digits is 501760, while the sum is 45.

The square root of 578728440 is about 24056.7753450042. The cubic root of 578728440 is about 833.3452065864.

The spelling of 578728440 in words is "five hundred seventy-eight million, seven hundred twenty-eight thousand, four hundred forty".