1028025635 has 24 divisors (see below), whose sum is σ = 1545432336. Its totient is φ = 650704320.

The previous prime is 1028025629. The next prime is 1028025637. The reversal of 1028025635 is 5365208201.

It is a de Polignac number, because none of the positive numbers 2^k-1028025635 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1028025637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158201 + ... + 164570.

It is an arithmetic number, because the mean of its divisors is an integer number (64393014).

Almost surely, 2^1028025635 is an apocalyptic number.

1028025635 is a deficient number, since it is larger than the sum of its proper divisors (517406701).

1028025635 is a wasteful number, since it uses less digits than its factorization.

1028025635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322803 (or 322796 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 1028025635 is about 32062.8388481120. The cubic root of 1028025635 is about 1009.2559415529.

The spelling of 1028025635 in words is "one billion, twenty-eight million, twenty-five thousand, six hundred thirty-five".