3983520 has 96 divisors (see below), whose sum is σ = 12906432. Its totient is φ = 1032192.

The previous prime is 3983509. The next prime is 3983543. The reversal of 3983520 is 253893.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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

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, 20544 + ... + 20736.

It is an arithmetic number, because the mean of its divisors is an integer number (134442).

Almost surely, 2^3983520 is an apocalyptic number.

3983520 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 3983520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6453216).

3983520 is an abundant number, since it is smaller than the sum of its proper divisors (8922912).

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

3983520 is a wasteful number, since it uses less digits than its factorization.

3983520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 3983520 is about 1995.8757476356. The cubic root of 3983520 is about 158.5218020410.

The spelling of 3983520 in words is "three million, nine hundred eighty-three thousand, five hundred twenty".