11420000 has 60 divisors (see below), whose sum is σ = 28144116. Its totient is φ = 4560000.

The previous prime is 11419999. The next prime is 11420009. The reversal of 11420000 is 2411.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 11420000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19715 + ... + 20285.

Almost surely, 2^11420000 is an apocalyptic number.

11420000 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 11420000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14072058).

11420000 is an abundant number, since it is smaller than the sum of its proper divisors (16724116).

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

11420000 is an frugal number, since it uses more digits than its factorization.

11420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601 (or 578 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 8.

The square root of 11420000 is about 3379.3490497432. The cubic root of 11420000 is about 225.1932496107.

Adding to 11420000 its reverse (2411), we get a palindrome (11422411).

The spelling of 11420000 in words is "eleven million, four hundred twenty thousand".