11001390 has 16 divisors (see below), whose sum is σ = 26403408. Its totient is φ = 2933696.

The previous prime is 11001377. The next prime is 11001391. The reversal of 11001390 is 9310011.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183327 + ... + 183386.

It is an arithmetic number, because the mean of its divisors is an integer number (1650213).

Almost surely, 2^11001390 is an apocalyptic number.

11001390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11001390 is an abundant number, since it is smaller than the sum of its proper divisors (15402018).

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

11001390 is a wasteful number, since it uses less digits than its factorization.

11001390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366723.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 11001390 is about 3316.8343341204. The cubic root of 11001390 is about 222.4073763361.

The spelling of 11001390 in words is "eleven million, one thousand, three hundred ninety".