3539842 has 8 divisors (see below), whose sum is σ = 5622156. Its totient is φ = 1665792.

The previous prime is 3539839. The next prime is 3539849. The reversal of 3539842 is 2489353.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3538161 + 1681 = 1881^2 + 41^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (34), and also a Moran number because the ratio is a prime number: 104113 = 3539842 / (3 + 5 + 3 + 9 + 8 + 4 + 2).

It is a d-powerful number, because it can be written as 3 + 5⁹ + 3¹² + 9⁴ + 8 + 4¹⁰ + 2⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 3539798 and 3539807.

It is not an unprimeable number, because it can be changed into a prime (3539849) 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, 52023 + ... + 52090.

Almost surely, 2^3539842 is an apocalyptic number.

3539842 is a deficient number, since it is larger than the sum of its proper divisors (2082314).

3539842 is a wasteful number, since it uses less digits than its factorization.

3539842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104132.

The product of its digits is 25920, while the sum is 34.

The square root of 3539842 is about 1881.4467837279. The cubic root of 3539842 is about 152.4033894944.

The spelling of 3539842 in words is "three million, five hundred thirty-nine thousand, eight hundred forty-two".