3481720 has 64 divisors (see below), whose sum is σ = 8799840. Its totient is φ = 1228800.

The previous prime is 3481691. The next prime is 3481721. The reversal of 3481720 is 271843.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3481721) 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, 17944 + ... + 18136.

Almost surely, 2^3481720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3481720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4399920).

3481720 is an abundant number, since it is smaller than the sum of its proper divisors (5318120).

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

3481720 is a wasteful number, since it uses less digits than its factorization.

3481720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 252 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 3481720 is about 1865.9367620581. The cubic root of 3481720 is about 151.5646592316.

The spelling of 3481720 in words is "three million, four hundred eighty-one thousand, seven hundred twenty".