1606212 has 18 divisors (see below), whose sum is σ = 4060238. Its totient is φ = 535392.

The previous prime is 1606201. The next prime is 1606237. The reversal of 1606212 is 2126061.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1052676 + 553536 = 1026^2 + 744^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22273 + ... + 22344.

2^1606212 is an apocalyptic number.

1606212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1606212 is an abundant number, since it is smaller than the sum of its proper divisors (2454026).

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

1606212 is a wasteful number, since it uses less digits than its factorization.

1606212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44627 (or 44622 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1606212 is about 1267.3641939080. The cubic root of 1606212 is about 117.1118807079. Note that the first 3 decimals are identical.

The spelling of 1606212 in words is "one million, six hundred six thousand, two hundred twelve".