3915140 has 24 divisors (see below), whose sum is σ = 8655360. Its totient is φ = 1483488.

The previous prime is 3915139. The next prime is 3915143. The reversal of 3915140 is 415193.

It is a happy number.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (3915143) 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 7 ways as a sum of consecutive naturals, for example, 4772 + ... + 5531.

It is an arithmetic number, because the mean of its divisors is an integer number (360640).

Almost surely, 2^3915140 is an apocalyptic number.

It is an amenable number.

3915140 is an abundant number, since it is smaller than the sum of its proper divisors (4740220).

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

3915140 is a wasteful number, since it uses less digits than its factorization.

3915140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10331 (or 10329 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 3915140 is about 1978.6712713334. The cubic root of 3915140 is about 157.6095148300.

The spelling of 3915140 in words is "three million, nine hundred fifteen thousand, one hundred forty".