11281396 has 48 divisors (see below), whose sum is σ = 23933952. Its totient is φ = 4550400.

The previous prime is 11281381. The next prime is 11281399. The reversal of 11281396 is 69318211.

11281396 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

11281396 is strictly pandigital in base 8.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11281399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35430 + ... + 35746.

It is an arithmetic number, because the mean of its divisors is an integer number (498624).

Almost surely, 2^11281396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11281396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11966976).

11281396 is an abundant number, since it is smaller than the sum of its proper divisors (12652556).

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

11281396 is a wasteful number, since it uses less digits than its factorization.

11281396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400 (or 398 counting only the distinct ones).

The product of its digits is 2592, while the sum is 31.

The square root of 11281396 is about 3358.7789447953. The cubic root of 11281396 is about 224.2784854778.

The spelling of 11281396 in words is "eleven million, two hundred eighty-one thousand, three hundred ninety-six".