3140220 has 48 divisors (see below), whose sum is σ = 8870400. Its totient is φ = 830016.

The previous prime is 3140209. The next prime is 3140233. The reversal of 3140220 is 220413.

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

It is a junction number, because it is equal to n+sod(n) for n = 3140196 and 3140205.

It is a congruent number.

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, 11809 + ... + 12071.

It is an arithmetic number, because the mean of its divisors is an integer number (184800).

Almost surely, 2^3140220 is an apocalyptic number.

3140220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3140220 is an abundant number, since it is smaller than the sum of its proper divisors (5730180).

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

3140220 is a wasteful number, since it uses less digits than its factorization.

3140220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474 (or 472 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 3140220 is about 1772.0665901709. The cubic root of 3140220 is about 146.4378548829.

Adding to 3140220 its reverse (220413), we get a palindrome (3360633).

The spelling of 3140220 in words is "three million, one hundred forty thousand, two hundred twenty".