3539920 has 20 divisors (see below), whose sum is σ = 8230500. Its totient is φ = 1415936.

The previous prime is 3539917. The next prime is 3539929. The reversal of 3539920 is 299353.

It can be written as a sum of positive squares in 2 ways, for example, as 484416 + 3055504 = 696^2 + 1748^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3539929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22045 + ... + 22204.

It is an arithmetic number, because the mean of its divisors is an integer number (411525).

Almost surely, 2^3539920 is an apocalyptic number.

It is an amenable number.

3539920 is an abundant number, since it is smaller than the sum of its proper divisors (4690580).

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

3539920 is a wasteful number, since it uses less digits than its factorization.

3539920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44262 (or 44256 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 3539920 is about 1881.4675123424. The cubic root of 3539920 is about 152.4045088830.

The spelling of 3539920 in words is "three million, five hundred thirty-nine thousand, nine hundred twenty".