11920420 has 12 divisors (see below), whose sum is σ = 25032924. Its totient is φ = 4768160.

The previous prime is 11920411. The next prime is 11920453. The reversal of 11920420 is 2402911.

It can be written as a sum of positive squares in 2 ways, for example, as 7750656 + 4169764 = 2784^2 + 2042^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 297991 + ... + 298030.

It is an arithmetic number, because the mean of its divisors is an integer number (2086077).

Almost surely, 2^11920420 is an apocalyptic number.

11920420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11920420 is an abundant number, since it is smaller than the sum of its proper divisors (13112504).

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

11920420 is a wasteful number, since it uses less digits than its factorization.

11920420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596030 (or 596028 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11920420 is about 3452.5961246575. The cubic root of 11920420 is about 228.4356347429.

The spelling of 11920420 in words is "eleven million, nine hundred twenty thousand, four hundred twenty".