11870118 has 64 divisors (see below), whose sum is σ = 29238720. Its totient is φ = 3545856.

The previous prime is 11870113. The next prime is 11870119. The reversal of 11870118 is 81107811.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 11870091 and 11870100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11870113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25746 + ... + 26202.

It is an arithmetic number, because the mean of its divisors is an integer number (456855).

Almost surely, 2^11870118 is an apocalyptic number.

11870118 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 11870118, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14619360).

11870118 is an abundant number, since it is smaller than the sum of its proper divisors (17368602).

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

11870118 is a wasteful number, since it uses less digits than its factorization.

11870118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 512 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 27.

The square root of 11870118 is about 3445.3037601930. The cubic root of 11870118 is about 228.1138627952.

Adding to 11870118 its reverse (81107811), we get a palindrome (92977929).

The spelling of 11870118 in words is "eleven million, eight hundred seventy thousand, one hundred eighteen".