11158434 has 96 divisors (see below), whose sum is σ = 29952000. Its totient is φ = 2931552.

The previous prime is 11158429. The next prime is 11158451. The reversal of 11158434 is 43485111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11158398 and 11158407.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 141207 + ... + 141285.

It is an arithmetic number, because the mean of its divisors is an integer number (312000).

Almost surely, 2^11158434 is an apocalyptic number.

11158434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11158434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14976000).

11158434 is an abundant number, since it is smaller than the sum of its proper divisors (18793566).

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

11158434 is a wasteful number, since it uses less digits than its factorization.

11158434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 169 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 11158434 is about 3340.4242245559. The cubic root of 11158434 is about 223.4606630167.

The spelling of 11158434 in words is "eleven million, one hundred fifty-eight thousand, four hundred thirty-four".