1028534838 has 32 divisors (see below), whose sum is σ = 2172393216. Its totient is φ = 323983968.

The previous prime is 1028534779. The next prime is 1028534893. The reversal of 1028534838 is 8384358201.

It is a self number, because there is not a number n which added to its sum of digits gives 1028534838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33445 + ... + 56352.

It is an arithmetic number, because the mean of its divisors is an integer number (67887288).

Almost surely, 2^1028534838 is an apocalyptic number.

1028534838 is an abundant number, since it is smaller than the sum of its proper divisors (1143858378).

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

1028534838 is a wasteful number, since it uses less digits than its factorization.

1028534838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89908.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 1028534838 is about 32070.7785686597. The cubic root of 1028534838 is about 1009.4225493714.

The spelling of 1028534838 in words is "one billion, twenty-eight million, five hundred thirty-four thousand, eight hundred thirty-eight".