1028539392 has 88 divisors (see below), whose sum is σ = 2860821696. Its totient is φ = 327917568.

The previous prime is 1028539387. The next prime is 1028539397. The reversal of 1028539392 is 2939358201.

It is an interprime number because it is at equal distance from previous prime (1028539387) and next prime (1028539397).

It is not an unprimeable number, because it can be changed into a prime (1028539397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63378 + ... + 77934.

Almost surely, 2^1028539392 is an apocalyptic number.

1028539392 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1028539392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1430410848).

1028539392 is an abundant number, since it is smaller than the sum of its proper divisors (1832282304).

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

1028539392 is a wasteful number, since it uses less digits than its factorization.

1028539392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14603 (or 14585 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 42.

The square root of 1028539392 is about 32070.8495677929. The cubic root of 1028539392 is about 1009.4240391617.

The spelling of 1028539392 in words is "one billion, twenty-eight million, five hundred thirty-nine thousand, three hundred ninety-two".