3143940 has 48 divisors (see below), whose sum is σ = 8957760. Its totient is φ = 823680.

The previous prime is 3143897. The next prime is 3143953. The reversal of 3143940 is 493413.

It is a self number, because there is not a number n which added to its sum of digits gives 3143940.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3231 + ... + 4089.

It is an arithmetic number, because the mean of its divisors is an integer number (186620).

Almost surely, 2^3143940 is an apocalyptic number.

3143940 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 3143940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4478880).

3143940 is an abundant number, since it is smaller than the sum of its proper divisors (5813820).

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

3143940 is a wasteful number, since it uses less digits than its factorization.

3143940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932 (or 930 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 3143940 is about 1773.1159014571. The cubic root of 3143940 is about 146.4956569746.

The spelling of 3143940 in words is "three million, one hundred forty-three thousand, nine hundred forty".