1578494560 has 48 divisors (see below), whose sum is σ = 3790351152. Its totient is φ = 621043200.

The previous prime is 1578494551. The next prime is 1578494579. The reversal of 1578494560 is 654948751.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71106 + ... + 90625.

It is an arithmetic number, because the mean of its divisors is an integer number (78965649).

Almost surely, 2^1578494560 is an apocalyptic number.

1578494560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1578494560 is an abundant number, since it is smaller than the sum of its proper divisors (2211856592).

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

1578494560 is a wasteful number, since it uses less digits than its factorization.

1578494560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161807 (or 161799 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 49.

The square root of 1578494560 is about 39730.2725890473. The cubic root of 1578494560 is about 1164.3432500920.

It can be divided in two parts, 157849 and 4560, that added together give a square (162409 = 403²).

The spelling of 1578494560 in words is "one billion, five hundred seventy-eight million, four hundred ninety-four thousand, five hundred sixty".