3650868 has 72 divisors (see below), whose sum is σ = 10319400. Its totient is φ = 1080576.

The previous prime is 3650863. The next prime is 3650887. The reversal of 3650868 is 8680563.

It can be written as a sum of positive squares in 4 ways, for example, as 10404 + 3640464 = 102^2 + 1908^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3650863) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 13438 + ... + 13706.

It is an arithmetic number, because the mean of its divisors is an integer number (143325).

Almost surely, 2^3650868 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 3650868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5159700).

3650868 is an abundant number, since it is smaller than the sum of its proper divisors (6668532).

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

3650868 is a wasteful number, since it uses less digits than its factorization.

3650868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3650868 is about 1910.7244699328. The cubic root of 3650868 is about 153.9803764280.

The spelling of 3650868 in words is "three million, six hundred fifty thousand, eight hundred sixty-eight".