11157678 has 48 divisors (see below), whose sum is σ = 29259360. Its totient is φ = 2999808.

The previous prime is 11157677. The next prime is 11157689. The reversal of 11157678 is 87675111.

It is a happy number.

11157678 is a `hidden beast` number, since 1 + 11 + 576 + 78 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11157673) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 463 + ... + 4746.

It is an arithmetic number, because the mean of its divisors is an integer number (609570).

Almost surely, 2^11157678 is an apocalyptic number.

11157678 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11157678, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14629680).

11157678 is an abundant number, since it is smaller than the sum of its proper divisors (18101682).

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

11157678 is a wasteful number, since it uses less digits than its factorization.

11157678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5241 (or 5238 counting only the distinct ones).

The product of its digits is 11760, while the sum is 36.

The square root of 11157678 is about 3340.3110633592. The cubic root of 11157678 is about 223.4556163087.

The spelling of 11157678 in words is "eleven million, one hundred fifty-seven thousand, six hundred seventy-eight".