1028598249 has 48 divisors (see below), whose sum is σ = 1686251520. Its totient is φ = 554954400.

The previous prime is 1028598239. The next prime is 1028598253. The reversal of 1028598249 is 9428958201.

It is not a de Polignac number, because 1028598249 - 2⁸ = 1028597993 is a prime.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1028598198 and 1028598207.

It is not an unprimeable number, because it can be changed into a prime (1028598239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 265174 + ... + 269024.

It is an arithmetic number, because the mean of its divisors is an integer number (35130240).

Almost surely, 2^1028598249 is an apocalyptic number.

It is an amenable number.

1028598249 is a deficient number, since it is larger than the sum of its proper divisors (657653271).

1028598249 is a wasteful number, since it uses less digits than its factorization.

1028598249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3970 (or 3963 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 1028598249 is about 32071.7671636597. The cubic root of 1028598249 is about 1009.4432931763.

The spelling of 1028598249 in words is "one billion, twenty-eight million, five hundred ninety-eight thousand, two hundred forty-nine".