1578338048 has 72 divisors (see below), whose sum is σ = 3684498048. Its totient is φ = 660667392.

The previous prime is 1578338033. The next prime is 1578338059. The reversal of 1578338048 is 8408338751.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1578337993 and 1578338011.

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, 66815 + ... + 87297.

It is an arithmetic number, because the mean of its divisors is an integer number (51173584).

Almost surely, 2^1578338048 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 1578338048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1842249024).

1578338048 is an abundant number, since it is smaller than the sum of its proper divisors (2106160000).

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

1578338048 is an equidigital number, since it uses as much as digits as its factorization.

1578338048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20549 (or 20535 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 1578338048 is about 39728.3028582898. The cubic root of 1578338048 is about 1164.3047662271.

The spelling of 1578338048 in words is "one billion, five hundred seventy-eight million, three hundred thirty-eight thousand, forty-eight".