11618428 has 24 divisors (see below), whose sum is σ = 21486080. Its totient is φ = 5488560.

The previous prime is 11618417. The next prime is 11618437. The reversal of 11618428 is 82481611.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a self number, because there is not a number n which added to its sum of digits gives 11618428.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4243 + ... + 6421.

Almost surely, 2^11618428 is an apocalyptic number.

It is an amenable number.

11618428 is a deficient number, since it is larger than the sum of its proper divisors (9867652).

11618428 is a wasteful number, since it uses less digits than its factorization.

11618428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2257 (or 2255 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 11618428 is about 3408.5815231559. The cubic root of 11618428 is about 226.4900479199.

The spelling of 11618428 in words is "eleven million, six hundred eighteen thousand, four hundred twenty-eight".