3524220785 has 8 divisors (see below), whose sum is σ = 4477833576. Its totient is φ = 2653530880.

The previous prime is 3524220769. The next prime is 3524220803. The reversal of 3524220785 is 5870224253.

It can be written as a sum of positive squares in 4 ways, for example, as 1697769616 + 1826451169 = 41204^2 + 42737^2 .

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

It is not a de Polignac number, because 3524220785 - 2⁴ = 3524220769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20730626 + ... + 20730795.

It is an arithmetic number, because the mean of its divisors is an integer number (559729197).

Almost surely, 2^3524220785 is an apocalyptic number.

It is an amenable number.

3524220785 is a deficient number, since it is larger than the sum of its proper divisors (953612791).

3524220785 is a wasteful number, since it uses less digits than its factorization.

3524220785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41461443.

The product of its (nonzero) digits is 134400, while the sum is 38.

The square root of 3524220785 is about 59365.1478984092. The cubic root of 3524220785 is about 1521.7887507167.

The spelling of 3524220785 in words is "three billion, five hundred twenty-four million, two hundred twenty thousand, seven hundred eighty-five".