3980280 has 64 divisors (see below), whose sum is σ = 12247200. Its totient is φ = 1034240.

The previous prime is 3980231. The next prime is 3980281. The reversal of 3980280 is 820893.

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 (3980281) 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, 4516 + ... + 5324.

Almost surely, 2^3980280 is an apocalyptic number.

3980280 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 3980280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6123600).

3980280 is an abundant number, since it is smaller than the sum of its proper divisors (8266920).

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

3980280 is a wasteful number, since it uses less digits than its factorization.

3980280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 3980280 is about 1995.0639087508. The cubic root of 3980280 is about 158.4788124279.

The spelling of 3980280 in words is "three million, nine hundred eighty thousand, two hundred eighty".