1028003136 has 56 divisors (see below), whose sum is σ = 2813730720. Its totient is φ = 330849792.

The previous prime is 1028003131. The next prime is 1028003191. The reversal of 1028003136 is 6313008201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028003131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86746 + ... + 97881.

Almost surely, 2^1028003136 is an apocalyptic number.

1028003136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1028003136 is an abundant number, since it is smaller than the sum of its proper divisors (1785727584).

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

1028003136 is a wasteful number, since it uses less digits than its factorization.

1028003136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184671 (or 184661 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1028003136 is about 32062.4879883018. The cubic root of 1028003136 is about 1009.2485787614.

The spelling of 1028003136 in words is "one billion, twenty-eight million, three thousand, one hundred thirty-six".