11019906 has 12 divisors (see below), whose sum is σ = 23876502. Its totient is φ = 3673296.

The previous prime is 11019889. The next prime is 11019929. The reversal of 11019906 is 60991011.

It can be written as a sum of positive squares in only one way, i.e., 10830681 + 189225 = 3291^2 + 435^2 .

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11019906.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306091 + ... + 306126.

Almost surely, 2^11019906 is an apocalyptic number.

11019906 is an abundant number, since it is smaller than the sum of its proper divisors (12856596).

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

11019906 is a wasteful number, since it uses less digits than its factorization.

11019906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 612225 (or 612222 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 11019906 is about 3319.6243763414. The cubic root of 11019906 is about 222.5320813902.

The spelling of 11019906 in words is "eleven million, nineteen thousand, nine hundred six".