11995420 has 48 divisors (see below), whose sum is σ = 26671680. Its totient is φ = 4522496.

The previous prime is 11995391. The next prime is 11995427. The reversal of 11995420 is 2459911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11995427) 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 15 ways as a sum of consecutive naturals, for example, 40794 + ... + 41086.

It is an arithmetic number, because the mean of its divisors is an integer number (555660).

Almost surely, 2^11995420 is an apocalyptic number.

11995420 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 11995420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13335840).

11995420 is an abundant number, since it is smaller than the sum of its proper divisors (14676260).

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

11995420 is a wasteful number, since it uses less digits than its factorization.

11995420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 11995420 is about 3463.4404859908. The cubic root of 11995420 is about 228.9137181864.

The spelling of 11995420 in words is "eleven million, nine hundred ninety-five thousand, four hundred twenty".