1872212 has 12 divisors (see below), whose sum is σ = 3330516. Its totient is φ = 920640.

The previous prime is 1872173. The next prime is 1872217. The reversal of 1872212 is 2122781.

It can be written as a sum of positive squares in 2 ways, for example, as 512656 + 1359556 = 716^2 + 1166^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1872217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3593 + ... + 4080.

It is an arithmetic number, because the mean of its divisors is an integer number (277543).

2^1872212 is an apocalyptic number.

It is an amenable number.

1872212 is a deficient number, since it is larger than the sum of its proper divisors (1458304).

1872212 is a wasteful number, since it uses less digits than its factorization.

1872212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7738 (or 7736 counting only the distinct ones).

The product of its digits is 448, while the sum is 23.

The square root of 1872212 is about 1368.2879813840. The cubic root of 1872212 is about 123.2494551829.

Adding to 1872212 its reverse (2122781), we get a palindrome (3994993).

The spelling of 1872212 in words is "one million, eight hundred seventy-two thousand, two hundred twelve".