5601820 has 24 divisors (see below), whose sum is σ = 13444704. Its totient is φ = 1920576.

The previous prime is 5601787. The next prime is 5601833. The reversal of 5601820 is 281065.

It is a happy number.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5601791 and 5601800.

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, 19867 + ... + 20146.

It is an arithmetic number, because the mean of its divisors is an integer number (560196).

Almost surely, 2^5601820 is an apocalyptic number.

It is an amenable number.

5601820 is an abundant number, since it is smaller than the sum of its proper divisors (7842884).

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

5601820 is a wasteful number, since it uses less digits than its factorization.

5601820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40029 (or 40027 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 5601820 is about 2366.8164271865. The cubic root of 5601820 is about 177.6000361848.

Adding to 5601820 its reverse (281065), we get a palindrome (5882885).

The spelling of 5601820 in words is "five million, six hundred one thousand, eight hundred twenty".