1028581071 has 16 divisors (see below), whose sum is σ = 1582883328. Its totient is φ = 581940000.

The previous prime is 1028581009. The next prime is 1028581097. The reversal of 1028581071 is 1701858201.

It is not a de Polignac number, because 1028581071 - 2⁹ = 1028580559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028581171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 240355 + ... + 244596.

It is an arithmetic number, because the mean of its divisors is an integer number (98930208).

Almost surely, 2^1028581071 is an apocalyptic number.

1028581071 is a deficient number, since it is larger than the sum of its proper divisors (554302257).

1028581071 is a wasteful number, since it uses less digits than its factorization.

1028581071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485062.

The product of its (nonzero) digits is 4480, while the sum is 33.

The square root of 1028581071 is about 32071.4993569057. The cubic root of 1028581071 is about 1009.4376737768.

The spelling of 1028581071 in words is "one billion, twenty-eight million, five hundred eighty-one thousand, seventy-one".