3521152420 has 24 divisors (see below), whose sum is σ = 7396099200. Its totient is φ = 1408141152.

The previous prime is 3521152417. The next prime is 3521152441. The reversal of 3521152420 is 242511253.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83311 + ... + 118249.

It is an arithmetic number, because the mean of its divisors is an integer number (308170800).

Almost surely, 2^3521152420 is an apocalyptic number.

It is an amenable number.

3521152420 is an abundant number, since it is smaller than the sum of its proper divisors (3874946780).

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

3521152420 is a wasteful number, since it uses less digits than its factorization.

3521152420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39987 (or 39985 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 3521152420 is about 59339.2991195548. The cubic root of 3521152420 is about 1521.3469737093.

Adding to 3521152420 its reverse (242511253), we get a palindrome (3763663673).

The spelling of 3521152420 in words is "three billion, five hundred twenty-one million, one hundred fifty-two thousand, four hundred twenty".