1576728868 has 24 divisors (see below), whose sum is σ = 3241667520. Its totient is φ = 661564320.

The previous prime is 1576728833. The next prime is 1576728911. The reversal of 1576728868 is 8688276751.

It is a happy number.

It is a super-2 number, since 2×1576728868² = 4972147846369122848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1377688 + ... + 1378831.

It is an arithmetic number, because the mean of its divisors is an integer number (135069480).

Almost surely, 2^1576728868 is an apocalyptic number.

It is an amenable number.

1576728868 is an abundant number, since it is smaller than the sum of its proper divisors (1664938652).

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

1576728868 is a wasteful number, since it uses less digits than its factorization.

1576728868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756547 (or 2756545 counting only the distinct ones).

The product of its digits is 9031680, while the sum is 58.

The square root of 1576728868 is about 39708.0453812574. The cubic root of 1576728868 is about 1163.9089462830.

The spelling of 1576728868 in words is "one billion, five hundred seventy-six million, seven hundred twenty-eight thousand, eight hundred sixty-eight".