3521436 has 12 divisors (see below), whose sum is σ = 8216712. Its totient is φ = 1173808.

The previous prime is 3521417. The next prime is 3521437. The reversal of 3521436 is 6341253.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3521437) 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, 146715 + ... + 146738.

It is an arithmetic number, because the mean of its divisors is an integer number (684726).

Almost surely, 2^3521436 is an apocalyptic number.

It is an amenable number.

3521436 is an abundant number, since it is smaller than the sum of its proper divisors (4695276).

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

3521436 is a wasteful number, since it uses less digits than its factorization.

3521436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293460 (or 293458 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 3521436 is about 1876.5489601926. The cubic root of 3521436 is about 152.1387813747.

Adding to 3521436 its reverse (6341253), we get a palindrome (9862689).

The spelling of 3521436 in words is "three million, five hundred twenty-one thousand, four hundred thirty-six".