3650020 has 48 divisors (see below), whose sum is σ = 8563968. Its totient is φ = 1295360.

The previous prime is 3649999. The next prime is 3650051. The reversal of 3650020 is 200563.

It is a junction number, because it is equal to n+sod(n) for n = 3649976 and 3650003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10164 + ... + 10516.

It is an arithmetic number, because the mean of its divisors is an integer number (178416).

Almost surely, 2^3650020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3650020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4281984).

3650020 is an abundant number, since it is smaller than the sum of its proper divisors (4913948).

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

3650020 is a wasteful number, since it uses less digits than its factorization.

3650020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 3650020 is about 1910.5025516863. The cubic root of 3650020 is about 153.9684536496.

Adding to 3650020 its reverse (200563), we get a palindrome (3850583).

The spelling of 3650020 in words is "three million, six hundred fifty thousand, twenty".