1028497152 has 72 divisors (see below), whose sum is σ = 2744388864. Its totient is φ = 341945344.

The previous prime is 1028497139. The next prime is 1028497163. The reversal of 1028497152 is 2517948201.

1028497152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1028497152² = 2115612783344222208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1028497152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338713 + ... + 341735.

It is an arithmetic number, because the mean of its divisors is an integer number (38116512).

Almost surely, 2^1028497152 is an apocalyptic number.

1028497152 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 1028497152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1372194432).

1028497152 is an abundant number, since it is smaller than the sum of its proper divisors (1715891712).

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

1028497152 is an equidigital number, since it uses as much as digits as its factorization.

1028497152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3485 (or 3471 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1028497152 is about 32070.1910190756. The cubic root of 1028497152 is about 1009.4102206486.

The spelling of 1028497152 in words is "one billion, twenty-eight million, four hundred ninety-seven thousand, one hundred fifty-two".