6620142 has 16 divisors (see below), whose sum is σ = 13329792. Its totient is φ = 2191800.

The previous prime is 6620101. The next prime is 6620171. The reversal of 6620142 is 2410266.

It is a happy number.

6620142 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2748 + ... + 4559.

It is an arithmetic number, because the mean of its divisors is an integer number (833112).

Almost surely, 2^6620142 is an apocalyptic number.

6620142 is an abundant number, since it is smaller than the sum of its proper divisors (6709650).

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

6620142 is a wasteful number, since it uses less digits than its factorization.

6620142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7463.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 6620142 is about 2572.9636608394. The cubic root of 6620142 is about 187.7683694762.

The spelling of 6620142 in words is "six million, six hundred twenty thousand, one hundred forty-two".