11428340 has 96 divisors (see below), whose sum is σ = 30820608. Its totient is φ = 3456000.

The previous prime is 11428331. The next prime is 11428343. The reversal of 11428340 is 4382411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11428343) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 63050 + ... + 63230.

It is an arithmetic number, because the mean of its divisors is an integer number (321048).

Almost surely, 2^11428340 is an apocalyptic number.

11428340 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 11428340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15410304).

11428340 is an abundant number, since it is smaller than the sum of its proper divisors (19392268).

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

11428340 is a wasteful number, since it uses less digits than its factorization.

11428340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 11428340 is about 3380.5827899935. The cubic root of 11428340 is about 225.2480556438.

The spelling of 11428340 in words is "eleven million, four hundred twenty-eight thousand, three hundred forty".