3955140 has 144 divisors (see below), whose sum is σ = 14222208. Its totient is φ = 870912.

The previous prime is 3955139. The next prime is 3955141. The reversal of 3955140 is 415593.

3955140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3955139) and next prime (3955141).

It is not an unprimeable number, because it can be changed into a prime (3955141) 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 47 ways as a sum of consecutive naturals, for example, 54144 + ... + 54216.

Almost surely, 2^3955140 is an apocalyptic number.

3955140 is a gapful number since it is divisible by the number (30) 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 3955140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7111104).

3955140 is an abundant number, since it is smaller than the sum of its proper divisors (10267068).

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

3955140 is a wasteful number, since it uses less digits than its factorization.

3955140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 3955140 is about 1988.7533783755. The cubic root of 3955140 is about 158.1444494295.

It can be divided in two parts, 3955 and 140, that added together give a triangular number (4095 = T₉₀).

The spelling of 3955140 in words is "three million, nine hundred fifty-five thousand, one hundred forty".