3669780 has 48 divisors (see below), whose sum is σ = 10612224. Its totient is φ = 946560.

The previous prime is 3669769. The next prime is 3669803. The reversal of 3669780 is 879663.

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, 874 + ... + 2846.

It is an arithmetic number, because the mean of its divisors is an integer number (221088).

Almost surely, 2^3669780 is an apocalyptic number.

3669780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3669780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5306112).

3669780 is an abundant number, since it is smaller than the sum of its proper divisors (6942444).

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

3669780 is a wasteful number, since it uses less digits than its factorization.

3669780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2016 (or 2014 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 3669780 is about 1915.6669856737. Note that the first 3 decimals coincide. The cubic root of 3669780 is about 154.2457985121.

The spelling of 3669780 in words is "three million, six hundred sixty-nine thousand, seven hundred eighty".