1609212 has 48 divisors (see below), whose sum is σ = 4177152. Its totient is φ = 478080.

The previous prime is 1609211. The next prime is 1609219. The reversal of 1609212 is 2129061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1609211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9553 + ... + 9719.

It is an arithmetic number, because the mean of its divisors is an integer number (87024).

2^1609212 is an apocalyptic number.

1609212 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 1609212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2088576).

1609212 is an abundant number, since it is smaller than the sum of its proper divisors (2567940).

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

1609212 is a wasteful number, since it uses less digits than its factorization.

1609212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1609212 is about 1268.5472005408. The cubic root of 1609212 is about 117.1847472064.

The spelling of 1609212 in words is "one million, six hundred nine thousand, two hundred twelve".