11215950 has 48 divisors (see below), whose sum is σ = 29033856. Its totient is φ = 2860000.

The previous prime is 11215933. The next prime is 11215951. The reversal of 11215950 is 5951211.

It is a self number, because there is not a number n which added to its sum of digits gives 11215950.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11215951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1825 + ... + 5075.

It is an arithmetic number, because the mean of its divisors is an integer number (604872).

Almost surely, 2^11215950 is an apocalyptic number.

11215950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11215950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14516928).

11215950 is an abundant number, since it is smaller than the sum of its proper divisors (17817906).

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

11215950 is a wasteful number, since it uses less digits than its factorization.

11215950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3289 (or 3284 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 24.

The square root of 11215950 is about 3349.0222453725. The cubic root of 11215950 is about 223.8439468994.

The spelling of 11215950 in words is "eleven million, two hundred fifteen thousand, nine hundred fifty".