11142860 has 24 divisors (see below), whose sum is σ = 23584176. Its totient is φ = 4422080.

The previous prime is 11142851. The next prime is 11142869. The reversal of 11142860 is 6824111.

It is an interprime number because it is at equal distance from previous prime (11142851) and next prime (11142869).

It is not an unprimeable number, because it can be changed into a prime (11142869) 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, 494 + ... + 4746.

It is an arithmetic number, because the mean of its divisors is an integer number (982674).

Almost surely, 2^11142860 is an apocalyptic number.

11142860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11142860 is an abundant number, since it is smaller than the sum of its proper divisors (12441316).

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

11142860 is a wasteful number, since it uses less digits than its factorization.

11142860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393 (or 4391 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 11142860 is about 3338.0922695456. The cubic root of 11142860 is about 223.3566521034.

Adding to 11142860 its reverse (6824111), we get a palindrome (17966971).

The spelling of 11142860 in words is "eleven million, one hundred forty-two thousand, eight hundred sixty".