11049640 has 128 divisors (see below), whose sum is σ = 31334400. Its totient is φ = 3421440.

The previous prime is 11049631. The next prime is 11049641. The reversal of 11049640 is 4694011.

It is not an unprimeable number, because it can be changed into a prime (11049641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164887 + ... + 164953.

It is an arithmetic number, because the mean of its divisors is an integer number (244800).

Almost surely, 2^11049640 is an apocalyptic number.

11049640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11049640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15667200).

11049640 is an abundant number, since it is smaller than the sum of its proper divisors (20284760).

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

11049640 is a wasteful number, since it uses less digits than its factorization.

11049640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 11049640 is about 3324.0998781625. The cubic root of 11049640 is about 222.7320476050.

The spelling of 11049640 in words is "eleven million, forty-nine thousand, six hundred forty".