3980520 has 48 divisors (see below), whose sum is σ = 12937860. Its totient is φ = 1061376.

The previous prime is 3980513. The next prime is 3980521. The reversal of 3980520 is 250893.

It can be written as a sum of positive squares in 2 ways, for example, as 3755844 + 224676 = 1938^2 + 474^2 .

It is not an unprimeable number, because it can be changed into a prime (3980521) 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 11 ways as a sum of consecutive naturals, for example, 5169 + ... + 5888.

Almost surely, 2^3980520 is an apocalyptic number.

3980520 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3980520 is an abundant number, since it is smaller than the sum of its proper divisors (8957340).

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

3980520 is a wasteful number, since it uses less digits than its factorization.

3980520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11074 (or 11067 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 3980520 is about 1995.1240562932. The cubic root of 3980520 is about 158.4819976436.

The spelling of 3980520 in words is "three million, nine hundred eighty thousand, five hundred twenty".