1099028 has 12 divisors (see below), whose sum is σ = 2198112. Its totient is φ = 471000.

The previous prime is 1098989. The next prime is 1099031. The reversal of 1099028 is 8209901.

1099028 is an admirable number.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19598 + ... + 19653.

It is an arithmetic number, because the mean of its divisors is an integer number (183176).

2^1099028 is an apocalyptic number.

It is an amenable number.

1099028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1099028 is a wasteful number, since it uses less digits than its factorization.

1099028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39262 (or 39260 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1099028 is about 1048.3453629410. The cubic root of 1099028 is about 103.1975972439.

It can be divided in two parts, 10990 and 28, that multiplied together give a triangular number (307720 = T₇₈₄).

The spelling of 1099028 in words is "one million, ninety-nine thousand, twenty-eight".