11428636 has 6 divisors (see below), whose sum is σ = 20000120. Its totient is φ = 5714316.

The previous prime is 11428621. The next prime is 11428649. The reversal of 11428636 is 63682411.

It is a happy number.

11428636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11428636² = 261227441640992, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11428598 and 11428607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1428576 + ... + 1428583.

Almost surely, 2^11428636 is an apocalyptic number.

It is an amenable number.

11428636 is a deficient number, since it is larger than the sum of its proper divisors (8571484).

11428636 is a wasteful number, since it uses less digits than its factorization.

11428636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857163 (or 2857161 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 11428636 is about 3380.6265691437. The cubic root of 11428636 is about 225.2500003080.

The spelling of 11428636 in words is "eleven million, four hundred twenty-eight thousand, six hundred thirty-six".