3649236 has 24 divisors (see below), whose sum is σ = 8746080. Its totient is φ = 1183392.

The previous prime is 3649229. The next prime is 3649241. The reversal of 3649236 is 6329463.

It is a junction number, because it is equal to n+sod(n) for n = 3649197 and 3649206.

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, 3666 + ... + 4553.

It is an arithmetic number, because the mean of its divisors is an integer number (364420).

Almost surely, 2^3649236 is an apocalyptic number.

It is an amenable number.

3649236 is an abundant number, since it is smaller than the sum of its proper divisors (5096844).

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

3649236 is a wasteful number, since it uses less digits than its factorization.

3649236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8263 (or 8261 counting only the distinct ones).

The product of its digits is 23328, while the sum is 33.

The square root of 3649236 is about 1910.2973590517. The cubic root of 3649236 is about 153.9574290606.

The spelling of 3649236 in words is "three million, six hundred forty-nine thousand, two hundred thirty-six".