3521402012 has 24 divisors (see below), whose sum is σ = 6488711040. Its totient is φ = 1667539440.

The previous prime is 3521401997. The next prime is 3521402021. The reversal of 3521402012 is 2102041253.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 459113 + ... + 466719.

It is an arithmetic number, because the mean of its divisors is an integer number (270362960).

Almost surely, 2^3521402012 is an apocalyptic number.

It is an amenable number.

3521402012 is a deficient number, since it is larger than the sum of its proper divisors (2967309028).

3521402012 is a wasteful number, since it uses less digits than its factorization.

3521402012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13721 (or 13719 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 3521402012 is about 59341.4021741987. The cubic root of 3521402012 is about 1521.3829190493.

Adding to 3521402012 its reverse (2102041253), we get a palindrome (5623443265).

The spelling of 3521402012 in words is "three billion, five hundred twenty-one million, four hundred two thousand, twelve".