3140406 has 12 divisors (see below), whose sum is σ = 6804252. Its totient is φ = 1046796.

The previous prime is 3140369. The next prime is 3140407. The reversal of 3140406 is 6040413.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 174467 = 3140406 / (3 + 1 + 4 + 0 + 4 + 0 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3140407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87216 + ... + 87251.

It is an arithmetic number, because the mean of its divisors is an integer number (567021).

Almost surely, 2^3140406 is an apocalyptic number.

3140406 is an abundant number, since it is smaller than the sum of its proper divisors (3663846).

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

3140406 is a wasteful number, since it uses less digits than its factorization.

3140406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174475 (or 174472 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3140406 is about 1772.1190704916. The cubic root of 3140406 is about 146.4407460714.

Adding to 3140406 its reverse (6040413), we get a palindrome (9180819).

The spelling of 3140406 in words is "three million, one hundred forty thousand, four hundred six".