1090028000 has 48 divisors (see below), whose sum is σ = 2678208624. Its totient is φ = 436009600.

The previous prime is 1090027973. The next prime is 1090028003. The reversal of 1090028000 is 8200901.

It is a super-2 number, since 2×1090028000² = 2376322081568000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090028003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132254 + ... + 140253.

It is an arithmetic number, because the mean of its divisors is an integer number (55796013).

Almost surely, 2^1090028000 is an apocalyptic number.

1090028000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1090028000 is an abundant number, since it is smaller than the sum of its proper divisors (1588180624).

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

1090028000 is an equidigital number, since it uses as much as digits as its factorization.

1090028000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272532 (or 272514 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1090028000 is about 33015.5720834881. The cubic root of 1090028000 is about 1029.1512787251.

Adding to 1090028000 its reverse (8200901), we get a palindrome (1098228901).

The spelling of 1090028000 in words is "one billion, ninety million, twenty-eight thousand".