3911120 has 20 divisors (see below), whose sum is σ = 9093540. Its totient is φ = 1564416.

The previous prime is 3911111. The next prime is 3911123. The reversal of 3911120 is 211193.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1860496 + 2050624 = 1364^2 + 1432^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3911123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24365 + ... + 24524.

It is an arithmetic number, because the mean of its divisors is an integer number (454677).

Almost surely, 2^3911120 is an apocalyptic number.

It is an amenable number.

3911120 is an abundant number, since it is smaller than the sum of its proper divisors (5182420).

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

3911120 is a wasteful number, since it uses less digits than its factorization.

3911120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48902 (or 48896 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 3911120 is about 1977.6551772238. The cubic root of 3911120 is about 157.5555527558. Note that the first 5 decimals are identical.

The spelling of 3911120 in words is "three million, nine hundred eleven thousand, one hundred twenty".