3669620 has 48 divisors (see below), whose sum is σ = 8382528. Its totient is φ = 1344000.

The previous prime is 3669613. The next prime is 3669643. The reversal of 3669620 is 269663.

It is a super-2 number, since 2×3669620² = 26932221888800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14495 + ... + 14745.

It is an arithmetic number, because the mean of its divisors is an integer number (174636).

Almost surely, 2^3669620 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 3669620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4191264).

3669620 is an abundant number, since it is smaller than the sum of its proper divisors (4712908).

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

3669620 is a wasteful number, since it uses less digits than its factorization.

3669620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 318 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 3669620 is about 1915.6252243067. The cubic root of 3669620 is about 154.2435568076.

The spelling of 3669620 in words is "three million, six hundred sixty-nine thousand, six hundred twenty".