11819420 has 24 divisors (see below), whose sum is σ = 26281584. Its totient is φ = 4449536.

The previous prime is 11819417. The next prime is 11819429. The reversal of 11819420 is 2491811.

11819420 is nontrivially palindromic in base 13.

11819420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 11819420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11819429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17042 + ... + 17721.

It is an arithmetic number, because the mean of its divisors is an integer number (1095066).

Almost surely, 2^11819420 is an apocalyptic number.

11819420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11819420 is an abundant number, since it is smaller than the sum of its proper divisors (14462164).

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

11819420 is a wasteful number, since it uses less digits than its factorization.

11819420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34789 (or 34787 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 11819420 is about 3437.9383356890. The cubic root of 11819420 is about 227.7886365811.

It can be divided in two parts, 1181 and 9420, that added together give a palindrome (10601).

The spelling of 11819420 in words is "eleven million, eight hundred nineteen thousand, four hundred twenty".