11986420 has 12 divisors (see below), whose sum is σ = 25171524. Its totient is φ = 4794560.

The previous prime is 11986417. The next prime is 11986451. The reversal of 11986420 is 2468911.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7873636 + 4112784 = 2806^2 + 2028^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299641 + ... + 299680.

It is an arithmetic number, because the mean of its divisors is an integer number (2097627).

Almost surely, 2^11986420 is an apocalyptic number.

11986420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11986420 is an abundant number, since it is smaller than the sum of its proper divisors (13185104).

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

11986420 is a wasteful number, since it uses less digits than its factorization.

11986420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599330 (or 599328 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 11986420 is about 3462.1409561137. The cubic root of 11986420 is about 228.8564535823.

The spelling of 11986420 in words is "eleven million, nine hundred eighty-six thousand, four hundred twenty".