11138658 has 8 divisors (see below), whose sum is σ = 22277328. Its totient is φ = 3712884.

The previous prime is 11138651. The next prime is 11138707. The reversal of 11138658 is 85683111.

It is a sphenic number, since it is the product of 3 distinct primes.

11138658 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (11138651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 928216 + ... + 928227.

It is an arithmetic number, because the mean of its divisors is an integer number (2784666).

Almost surely, 2^11138658 is an apocalyptic number.

11138658 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.

11138658 is a wasteful number, since it uses less digits than its factorization.

11138658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1856448.

The product of its digits is 5760, while the sum is 33.

The square root of 11138658 is about 3337.4628087815. The cubic root of 11138658 is about 223.3285724586.

The spelling of 11138658 in words is "eleven million, one hundred thirty-eight thousand, six hundred fifty-eight".