861528338 has 16 divisors (see below), whose sum is σ = 1427621760. Its totient is φ = 386646000.

The previous prime is 861528323. The next prime is 861528361. The reversal of 861528338 is 833825168.

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, 246113 + ... + 249588.

It is an arithmetic number, because the mean of its divisors is an integer number (89226360).

Almost surely, 2^861528338 is an apocalyptic number.

861528338 is a deficient number, since it is larger than the sum of its proper divisors (566093422).

861528338 is a wasteful number, since it uses less digits than its factorization.

861528338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495793.

The product of its digits is 276480, while the sum is 44.

The square root of 861528338 is about 29351.8029769893. The cubic root of 861528338 is about 951.5315417876.

The spelling of 861528338 in words is "eight hundred sixty-one million, five hundred twenty-eight thousand, three hundred thirty-eight".