6600642 has 16 divisors (see below), whose sum is σ = 13279680. Its totient is φ = 2187152.

The previous prime is 6600623. The next prime is 6600667. The reversal of 6600642 is 2460066.

6600642 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×6600642³ (a number of 21 digits) contains 333 as substring.

It is an Ulam 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, 2142 + ... + 4217.

It is an arithmetic number, because the mean of its divisors is an integer number (829980).

Almost surely, 2^6600642 is an apocalyptic number.

6600642 is an abundant number, since it is smaller than the sum of its proper divisors (6679038).

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

6600642 is a wasteful number, since it uses less digits than its factorization.

6600642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6537.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 6600642 is about 2569.1714617752. The cubic root of 6600642 is about 187.5838274058.

It can be divided in two parts, 660064 and 2, that added together give a palindrome (660066).

The spelling of 6600642 in words is "six million, six hundred thousand, six hundred forty-two".