1027439028 has 144 divisors (see below), whose sum is σ = 3349906560. Its totient is φ = 257644800.

The previous prime is 1027439027. The next prime is 1027439071. The reversal of 1027439028 is 8209347201.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1027438983 and 1027439001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027439027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 73998 + ... + 86778.

It is an arithmetic number, because the mean of its divisors is an integer number (23263240).

Almost surely, 2^1027439028 is an apocalyptic number.

1027439028 is a gapful number since it is divisible by the number (18) 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 1027439028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1674953280).

1027439028 is an abundant number, since it is smaller than the sum of its proper divisors (2322467532).

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

1027439028 is a wasteful number, since it uses less digits than its factorization.

1027439028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12838 (or 12833 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 1027439028 is about 32053.6897720060. The cubic root of 1027439028 is about 1009.0639394523.

The spelling of 1027439028 in words is "one billion, twenty-seven million, four hundred thirty-nine thousand, twenty-eight".