11421088 has 48 divisors (see below), whose sum is σ = 26115264. Its totient is φ = 4815360.

The previous prime is 11421079. The next prime is 11421119. The reversal of 11421088 is 88012411.

It is a super-2 number, since 2×11421088² = 260882502207488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14628 + ... + 15388.

It is an arithmetic number, because the mean of its divisors is an integer number (544068).

Almost surely, 2^11421088 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 11421088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13057632).

11421088 is an abundant number, since it is smaller than the sum of its proper divisors (14694176).

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

11421088 is an equidigital number, since it uses as much as digits as its factorization.

11421088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845 (or 837 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 11421088 is about 3379.5100236573. The cubic root of 11421088 is about 225.2004008797.

Adding to 11421088 its reverse (88012411), we get a palindrome (99433499).

The spelling of 11421088 in words is "eleven million, four hundred twenty-one thousand, eighty-eight".