1577728134 has 48 divisors (see below), whose sum is σ = 3511020240. Its totient is φ = 511729920.

The previous prime is 1577728121. The next prime is 1577728153. The reversal of 1577728134 is 4318277751.

1577728134 is a `hidden beast` number, since 1 + 577 + 72 + 8 + 1 + 3 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1577728134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 299229 + ... + 304455.

It is an arithmetic number, because the mean of its divisors is an integer number (73146255).

Almost surely, 2^1577728134 is an apocalyptic number.

1577728134 is an abundant number, since it is smaller than the sum of its proper divisors (1933292106).

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

1577728134 is a wasteful number, since it uses less digits than its factorization.

1577728134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685 (or 5682 counting only the distinct ones).

The product of its digits is 329280, while the sum is 45.

The square root of 1577728134 is about 39720.6260524680. The cubic root of 1577728134 is about 1164.1547735880.

The spelling of 1577728134 in words is "one billion, five hundred seventy-seven million, seven hundred twenty-eight thousand, one hundred thirty-four".