11142858 has 16 divisors (see below), whose sum is σ = 22664160. Its totient is φ = 3651216.

The previous prime is 11142851. The next prime is 11142869. The reversal of 11142858 is 85824111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11142851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15385 + ... + 16092.

It is an arithmetic number, because the mean of its divisors is an integer number (1416510).

Almost surely, 2^11142858 is an apocalyptic number.

11142858 is an abundant number, since it is smaller than the sum of its proper divisors (11521302).

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

11142858 is a wasteful number, since it uses less digits than its factorization.

11142858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31541.

The product of its digits is 2560, while the sum is 30.

The square root of 11142858 is about 3338.0919699733. The cubic root of 11142858 is about 223.3566387402.

Adding to 11142858 its reverse (85824111), we get a palindrome (96966969).

The spelling of 11142858 in words is "eleven million, one hundred forty-two thousand, eight hundred fifty-eight".