11420644 has 6 divisors (see below), whose sum is σ = 19986134. Its totient is φ = 5710320.

The previous prime is 11420641. The next prime is 11420663. The reversal of 11420644 is 44602411.

11420644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11289600 + 131044 = 3360^2 + 362^2 .

It is a super-2 number, since 2×11420644² = 260862218749472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11420641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1427577 + ... + 1427584.

Almost surely, 2^11420644 is an apocalyptic number.

It is an amenable number.

11420644 is a deficient number, since it is larger than the sum of its proper divisors (8565490).

11420644 is a wasteful number, since it uses less digits than its factorization.

11420644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2855165 (or 2855163 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 11420644 is about 3379.4443330228. Note that the first 3 decimals coincide. The cubic root of 11420644 is about 225.1974825858.

The spelling of 11420644 in words is "eleven million, four hundred twenty thousand, six hundred forty-four".