11420064 has 72 divisors (see below), whose sum is σ = 34201440. Its totient is φ = 3604608.

The previous prime is 11420063. The next prime is 11420077. The reversal of 11420064 is 46002411.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (11420063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4429 + ... + 6515.

It is an arithmetic number, because the mean of its divisors is an integer number (475020).

Almost surely, 2^11420064 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 11420064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17100720).

11420064 is an abundant number, since it is smaller than the sum of its proper divisors (22781376).

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

11420064 is a wasteful number, since it uses less digits than its factorization.

11420064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122 (or 2111 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 11420064 is about 3379.3585190092. The cubic root of 11420064 is about 225.1936702862.

Adding to 11420064 its reverse (46002411), we get a palindrome (57422475).

The spelling of 11420064 in words is "eleven million, four hundred twenty thousand, sixty-four".