6620112 has 60 divisors (see below), whose sum is σ = 19137664. Its totient is φ = 2134080.

The previous prime is 6620101. The next prime is 6620171. The reversal of 6620112 is 2110266.

It is a happy number.

6620112 is a `hidden beast` number, since 662 + 0 + 1 + 1 + 2 = 666.

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

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3723 + ... + 5205.

Almost surely, 2^6620112 is an apocalyptic number.

6620112 is a gapful number since it is divisible by the number (62) 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 6620112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9568832).

6620112 is an abundant number, since it is smaller than the sum of its proper divisors (12517552).

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

6620112 is a wasteful number, since it uses less digits than its factorization.

6620112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528 (or 1519 counting only the distinct ones).

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

The square root of 6620112 is about 2572.9578309797. The cubic root of 6620112 is about 187.7680858439.

Adding to 6620112 its reverse (2110266), we get a palindrome (8730378).

The spelling of 6620112 in words is "six million, six hundred twenty thousand, one hundred twelve".