1612220 has 12 divisors (see below), whose sum is σ = 3385704. Its totient is φ = 644880.

The previous prime is 1612213. The next prime is 1612223. The reversal of 1612220 is 222161.

It is a super-3 number, since 3×1612220³ = 12571704603339144000, which contains 333 as substring.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1612195 and 1612204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612223) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40286 + ... + 40325.

It is an arithmetic number, because the mean of its divisors is an integer number (282142).

2^1612220 is an apocalyptic number.

1612220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1612220 is an abundant number, since it is smaller than the sum of its proper divisors (1773484).

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

1612220 is a wasteful number, since it uses less digits than its factorization.

1612220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80620 (or 80618 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1612220 is about 1269.7322552412. The cubic root of 1612220 is about 117.2577171481.

Adding to 1612220 its reverse (222161), we get a palindrome (1834381).

The spelling of 1612220 in words is "one million, six hundred twelve thousand, two hundred twenty".