3031140 has 72 divisors (see below), whose sum is σ = 9882432. Its totient is φ = 692160.

The previous prime is 3031129. The next prime is 3031141. The reversal of 3031140 is 411303.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2425 + ... + 3455.

It is an arithmetic number, because the mean of its divisors is an integer number (137256).

Almost surely, 2^3031140 is an apocalyptic number.

3031140 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 3031140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4941216).

3031140 is an abundant number, since it is smaller than the sum of its proper divisors (6851292).

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

3031140 is a wasteful number, since it uses less digits than its factorization.

3031140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3031140 is about 1741.0169442024. The cubic root of 3031140 is about 144.7222586669.

Adding to 3031140 its reverse (411303), we get a palindrome (3442443).

The spelling of 3031140 in words is "three million, thirty-one thousand, one hundred forty".