1028061888 has 112 divisors (see below), whose sum is σ = 3181136640. Its totient is φ = 286884864.

The previous prime is 1028061877. The next prime is 1028061901. The reversal of 1028061888 is 8881608201.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×1028061888² = 2113822491116249088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48898 + ... + 66686.

Almost surely, 2^1028061888 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1028061888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1590568320).

1028061888 is an abundant number, since it is smaller than the sum of its proper divisors (2153074752).

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

1028061888 is a wasteful number, since it uses less digits than its factorization.

1028061888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17854 (or 17844 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 42.

The square root of 1028061888 is about 32063.4041860811. The cubic root of 1028061888 is about 1009.2678051110.

The spelling of 1028061888 in words is "one billion, twenty-eight million, sixty-one thousand, eight hundred eighty-eight".