11398320 has 100 divisors (see below), whose sum is σ = 39610560. Its totient is φ = 3037824.

The previous prime is 11398301. The next prime is 11398367. The reversal of 11398320 is 2389311.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5601 + ... + 7359.

Almost surely, 2^11398320 is an apocalyptic number.

11398320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11398320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19805280).

11398320 is an abundant number, since it is smaller than the sum of its proper divisors (28212240).

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

11398320 is a wasteful number, since it uses less digits than its factorization.

11398320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784 (or 1769 counting only the distinct ones).

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

The square root of 11398320 is about 3376.1398075317. The cubic root of 11398320 is about 225.0506552616.

Subtracting from 11398320 its reverse (2389311), we obtain a palindrome (9009009).

It can be divided in two parts, 113983 and 20, that added together give a triangular number (114003 = T₄₇₇).

The spelling of 11398320 in words is "eleven million, three hundred ninety-eight thousand, three hundred twenty".