3831140 has 24 divisors (see below), whose sum is σ = 8090880. Its totient is φ = 1523808.

The previous prime is 3831131. The next prime is 3831167. The reversal of 3831140 is 411383.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4031 + ... + 4889.

It is an arithmetic number, because the mean of its divisors is an integer number (337120).

Almost surely, 2^3831140 is an apocalyptic number.

It is an amenable number.

3831140 is an abundant number, since it is smaller than the sum of its proper divisors (4259740).

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

3831140 is a wasteful number, since it uses less digits than its factorization.

3831140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1089 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 3831140 is about 1957.3298138025. The cubic root of 3831140 is about 156.4741763473.

The spelling of 3831140 in words is "three million, eight hundred thirty-one thousand, one hundred forty".