1028894602 has 4 divisors (see below), whose sum is σ = 1543341906. Its totient is φ = 514447300.

The previous prime is 1028894599. The next prime is 1028894609. The reversal of 1028894602 is 2064988201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 943165521 + 85729081 = 30711^2 + 9259^2 .

It is not an unprimeable number, because it can be changed into a prime (1028894609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257223649 + ... + 257223652.

Almost surely, 2^1028894602 is an apocalyptic number.

1028894602 is a deficient number, since it is larger than the sum of its proper divisors (514447304).

1028894602 is an equidigital number, since it uses as much as digits as its factorization.

1028894602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514447303.

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 1028894602 is about 32076.3869848211. The cubic root of 1028894602 is about 1009.5402286006.

The spelling of 1028894602 in words is "one billion, twenty-eight million, eight hundred ninety-four thousand, six hundred two".