1028349609 has 16 divisors (see below), whose sum is σ = 1572842880. Its totient is φ = 585440640.

The previous prime is 1028349583. The next prime is 1028349617. The reversal of 1028349609 is 9069438201.

It is not a de Polignac number, because 1028349609 - 2¹⁶ = 1028284073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1028349629) 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, 85372 + ... + 96669.

It is an arithmetic number, because the mean of its divisors is an integer number (98302680).

Almost surely, 2^1028349609 is an apocalyptic number.

It is an amenable number.

1028349609 is a deficient number, since it is larger than the sum of its proper divisors (544493271).

1028349609 is a wasteful number, since it uses less digits than its factorization.

1028349609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182320.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 1028349609 is about 32067.8906228645. The cubic root of 1028349609 is about 1009.3619500452.

The spelling of 1028349609 in words is "one billion, twenty-eight million, three hundred forty-nine thousand, six hundred nine".