6610420 has 24 divisors (see below), whose sum is σ = 14258664. Its totient is φ = 2572416.

The previous prime is 6610411. The next prime is 6610427. The reversal of 6610420 is 240166.

It can be written as a sum of positive squares in 4 ways, for example, as 1106704 + 5503716 = 1052^2 + 2346^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6610427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3727 + ... + 5206.

It is an arithmetic number, because the mean of its divisors is an integer number (594111).

Almost surely, 2^6610420 is an apocalyptic number.

It is an amenable number.

6610420 is an abundant number, since it is smaller than the sum of its proper divisors (7648244).

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

6610420 is a wasteful number, since it uses less digits than its factorization.

6610420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8979 (or 8977 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 6610420 is about 2571.0737056724. The cubic root of 6610420 is about 187.6764087891.

Adding to 6610420 its reverse (240166), we get a palindrome (6850586).

The spelling of 6610420 in words is "six million, six hundred ten thousand, four hundred twenty".