1150280028 has 60 divisors (see below), whose sum is σ = 3011288280. Its totient is φ = 382887648.

The previous prime is 1150280023. The next prime is 1150280063. The reversal of 1150280028 is 8200820511.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1150279983 and 1150280010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150280023) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 276250 + ... + 280382.

It is an arithmetic number, because the mean of its divisors is an integer number (50188138).

Almost surely, 2^1150280028 is an apocalyptic number.

1150280028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1150280028 is an abundant number, since it is smaller than the sum of its proper divisors (1861008252).

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

1150280028 is a wasteful number, since it uses less digits than its factorization.

1150280028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5008 (or 4997 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 1150280028 is about 33915.7784519241. The cubic root of 1150280028 is about 1047.7745846500.

The spelling of 1150280028 in words is "one billion, one hundred fifty million, two hundred eighty thousand, twenty-eight".