11028690 has 32 divisors (see below), whose sum is σ = 29410560. Its totient is φ = 2940912.

The previous prime is 11028679. The next prime is 11028709. The reversal of 11028690 is 9682011.

It is a super-2 number, since 2×11028690² = 243264006232200, which contains 22 as substring.

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

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, 20154 + ... + 20693.

It is an arithmetic number, because the mean of its divisors is an integer number (919080).

Almost surely, 2^11028690 is an apocalyptic number.

11028690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11028690 is an abundant number, since it is smaller than the sum of its proper divisors (18381870).

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

11028690 is a wasteful number, since it uses less digits than its factorization.

11028690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40863 (or 40857 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 11028690 is about 3320.9471540511. The cubic root of 11028690 is about 222.5911926827.

It can be divided in two parts, 110286 and 90, that multiplied together give a triangular number (9925740 = T₄₄₅₅).

The spelling of 11028690 in words is "eleven million, twenty-eight thousand, six hundred ninety".