11420340 has 24 divisors (see below), whose sum is σ = 31977120. Its totient is φ = 3045408.

The previous prime is 11420333. The next prime is 11420341. The reversal of 11420340 is 4302411.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95110 + ... + 95229.

It is an arithmetic number, because the mean of its divisors is an integer number (1332380).

Almost surely, 2^11420340 is an apocalyptic number.

11420340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11420340 is an abundant number, since it is smaller than the sum of its proper divisors (20556780).

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

11420340 is a wasteful number, since it uses less digits than its factorization.

11420340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190351 (or 190349 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 11420340 is about 3379.3993549150. The cubic root of 11420340 is about 225.1954844311.

Adding to 11420340 its reverse (4302411), we get a palindrome (15722751).

The spelling of 11420340 in words is "eleven million, four hundred twenty thousand, three hundred forty".