11813420 has 24 divisors (see below), whose sum is σ = 25040400. Its totient is φ = 4681152.

The previous prime is 11813401. The next prime is 11813437. The reversal of 11813420 is 2431811.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11813392 and 11813401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530 + ... + 4889.

It is an arithmetic number, because the mean of its divisors is an integer number (1043350).

Almost surely, 2^11813420 is an apocalyptic number.

11813420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11813420 is an abundant number, since it is smaller than the sum of its proper divisors (13226980).

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

11813420 is a wasteful number, since it uses less digits than its factorization.

11813420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5537 (or 5535 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 11813420 is about 3437.0656089170. The cubic root of 11813420 is about 227.7500852490.

The spelling of 11813420 in words is "eleven million, eight hundred thirteen thousand, four hundred twenty".