3130940 has 24 divisors (see below), whose sum is σ = 6754272. Its totient is φ = 1218240.

The previous prime is 3130913. The next prime is 3130943. The reversal of 3130940 is 490313.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130943) 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, 1376 + ... + 2855.

It is an arithmetic number, because the mean of its divisors is an integer number (281428).

Almost surely, 2^3130940 is an apocalyptic number.

It is an amenable number.

3130940 is an abundant number, since it is smaller than the sum of its proper divisors (3623332).

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

3130940 is a wasteful number, since it uses less digits than its factorization.

3130940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4277 (or 4275 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 3130940 is about 1769.4462410596. The cubic root of 3130940 is about 146.2934611623.

The spelling of 3130940 in words is "three million, one hundred thirty thousand, nine hundred forty".