1939212 has 72 divisors (see below), whose sum is σ = 5503680. Its totient is φ = 570720.

The previous prime is 1939187. The next prime is 1939229. The reversal of 1939212 is 2129391.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23323 + ... + 23405.

It is an arithmetic number, because the mean of its divisors is an integer number (76440).

2^1939212 is an apocalyptic number.

1939212 is a gapful number since it is divisible by the number (12) 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 1939212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2751840).

1939212 is an abundant number, since it is smaller than the sum of its proper divisors (3564468).

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

1939212 is a wasteful number, since it uses less digits than its factorization.

1939212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 158 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 1939212 is about 1392.5559234731. Note that the first 3 decimals coincide. The cubic root of 1939212 is about 124.7024817583.

The spelling of 1939212 in words is "one million, nine hundred thirty-nine thousand, two hundred twelve".