11215242 has 48 divisors (see below), whose sum is σ = 25459200. Its totient is φ = 3564000.

The previous prime is 11215229. The next prime is 11215247. The reversal of 11215242 is 24251211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11215247) 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, 56259 + ... + 56457.

It is an arithmetic number, because the mean of its divisors is an integer number (530400).

Almost surely, 2^11215242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11215242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12729600).

11215242 is an abundant number, since it is smaller than the sum of its proper divisors (14243958).

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

11215242 is a wasteful number, since it uses less digits than its factorization.

11215242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339 (or 336 counting only the distinct ones).

The product of its digits is 160, while the sum is 18.

The square root of 11215242 is about 3348.9165412115. The cubic root of 11215242 is about 223.8392367961.

Adding to 11215242 its reverse (24251211), we get a palindrome (35466453).

The spelling of 11215242 in words is "eleven million, two hundred fifteen thousand, two hundred forty-two".