1028305242 has 12 divisors (see below), whose sum is σ = 2227994730. Its totient is φ = 342768408.

The previous prime is 1028305241. The next prime is 1028305249. The reversal of 1028305242 is 2425038201.

1028305242 is a `hidden beast` number, since 102 + 8 + 30 + 524 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 765573561 + 262731681 = 27669^2 + 16209^2 .

It is not an unprimeable number, because it can be changed into a prime (1028305241) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28564017 + ... + 28564052.

Almost surely, 2^1028305242 is an apocalyptic number.

1028305242 is an abundant number, since it is smaller than the sum of its proper divisors (1199689488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1028305242 is a wasteful number, since it uses less digits than its factorization.

1028305242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57128077 (or 57128074 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1028305242 is about 32067.1988486678. The cubic root of 1028305242 is about 1009.3474339036.

The spelling of 1028305242 in words is "one billion, twenty-eight million, three hundred five thousand, two hundred forty-two".