1028617488 has 80 divisors (see below), whose sum is σ = 2983072960. Its totient is φ = 339323904.

The previous prime is 1028617463. The next prime is 1028617489. The reversal of 1028617488 is 8847168201.

1028617488 is a `hidden beast` number, since 1 + 0 + 28 + 617 + 4 + 8 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (1028617489) 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, 29631 + ... + 54177.

It is an arithmetic number, because the mean of its divisors is an integer number (37288412).

Almost surely, 2^1028617488 is an apocalyptic number.

1028617488 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 1028617488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1491536480).

1028617488 is an abundant number, since it is smaller than the sum of its proper divisors (1954455472).

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

1028617488 is a wasteful number, since it uses less digits than its factorization.

1028617488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24661 (or 24649 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 45.

The square root of 1028617488 is about 32072.0670989570. The cubic root of 1028617488 is about 1009.4495867117.

The spelling of 1028617488 in words is "one billion, twenty-eight million, six hundred seventeen thousand, four hundred eighty-eight".