11406556 has 12 divisors (see below), whose sum is σ = 22813168. Its totient is φ = 4888512.

The previous prime is 11406553. The next prime is 11406557. The reversal of 11406556 is 65560411.

11406556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

11406556 is an admirable number.

It is a super-2 number, since 2×11406556² = 260219039562272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 407377 = 11406556 / (1 + 1 + 4 + 0 + 6 + 5 + 5 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11406553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203661 + ... + 203716.

Almost surely, 2^11406556 is an apocalyptic number.

It is an amenable number.

11406556 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11406556 is a wasteful number, since it uses less digits than its factorization.

11406556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407388 (or 407386 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 11406556 is about 3377.3593234952. The cubic root of 11406556 is about 225.1048466087.

Adding to 11406556 its reverse (65560411), we get a palindrome (76966967).

The spelling of 11406556 in words is "eleven million, four hundred six thousand, five hundred fifty-six".