6619842 has 24 divisors (see below), whose sum is σ = 14580540. Its totient is φ = 2170080.

The previous prime is 6619829. The next prime is 6619849. The reversal of 6619842 is 2489166.

It can be written as a sum of positive squares in 2 ways, for example, as 6610041 + 9801 = 2571^2 + 99^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6619797 and 6619806.

It is not an unprimeable number, because it can be changed into a prime (6619849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1917 + ... + 4112.

Almost surely, 2^6619842 is an apocalyptic number.

6619842 is an abundant number, since it is smaller than the sum of its proper divisors (7960698).

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

6619842 is a wasteful number, since it uses less digits than its factorization.

6619842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6098 (or 6095 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 6619842 is about 2572.9053616486. The cubic root of 6619842 is about 187.7655331140.

The spelling of 6619842 in words is "six million, six hundred nineteen thousand, eight hundred forty-two".