1138574828 has 6 divisors (see below), whose sum is σ = 1992505956. Its totient is φ = 569287412.

The previous prime is 1138574809. The next prime is 1138574837. The reversal of 1138574828 is 8284758311.

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 as a sum of consecutive naturals, namely, 142321850 + ... + 142321857.

It is an arithmetic number, because the mean of its divisors is an integer number (332084326).

Almost surely, 2^1138574828 is an apocalyptic number.

It is an amenable number.

1138574828 is a deficient number, since it is larger than the sum of its proper divisors (853931128).

1138574828 is a wasteful number, since it uses less digits than its factorization.

1138574828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284643711 (or 284643709 counting only the distinct ones).

The product of its digits is 430080, while the sum is 47.

The square root of 1138574828 is about 33742.7744561706. The cubic root of 1138574828 is about 1044.2084244502.

The spelling of 1138574828 in words is "one billion, one hundred thirty-eight million, five hundred seventy-four thousand, eight hundred twenty-eight".