11216394 has 84 divisors (see below), whose sum is σ = 29530674. Its totient is φ = 3184272.

The previous prime is 11216393. The next prime is 11216399. The reversal of 11216394 is 49361211.

11216394 is a `hidden beast` number, since 1 + 1 + 21 + 639 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10323369 + 893025 = 3213^2 + 945^2 .

It is a super-3 number, since 3×11216394³ (a number of 22 digits) contains 333 as substring.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11216393) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 71364 + ... + 71520.

Almost surely, 2^11216394 is an apocalyptic number.

11216394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11216394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14765337).

11216394 is an abundant number, since it is smaller than the sum of its proper divisors (18314280).

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

11216394 is an equidigital number, since it uses as much as digits as its factorization.

11216394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 169 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 11216394 is about 3349.0885327205. The cubic root of 11216394 is about 223.8469005919.

The spelling of 11216394 in words is "eleven million, two hundred sixteen thousand, three hundred ninety-four".