3381780 has 48 divisors (see below), whose sum is σ = 9555840. Its totient is φ = 893568.

The previous prime is 3381773. The next prime is 3381787. The reversal of 3381780 is 871833.

It is an interprime number because it is at equal distance from previous prime (3381773) and next prime (3381787).

It is a super-2 number, since 2×3381780² = 22872871936800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3381787) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9241 + ... + 9599.

It is an arithmetic number, because the mean of its divisors is an integer number (199080).

Almost surely, 2^3381780 is an apocalyptic number.

3381780 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 3381780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4777920).

3381780 is an abundant number, since it is smaller than the sum of its proper divisors (6174060).

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

3381780 is a wasteful number, since it uses less digits than its factorization.

3381780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 3381780 is about 1838.9616635482. The cubic root of 3381780 is about 150.1003772588.

The spelling of 3381780 in words is "three million, three hundred eighty-one thousand, seven hundred eighty".