3649550 has 24 divisors (see below), whose sum is σ = 6937056. Its totient is φ = 1427840.

The previous prime is 3649549. The next prime is 3649559. The reversal of 3649550 is 559463.

It is a happy number.

3649550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3649559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1574 + ... + 3126.

It is an arithmetic number, because the mean of its divisors is an integer number (289044).

Almost surely, 2^3649550 is an apocalyptic number.

3649550 is a deficient number, since it is larger than the sum of its proper divisors (3287506).

3649550 is a wasteful number, since it uses less digits than its factorization.

3649550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612 (or 1607 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 3649550 is about 1910.3795434416. The cubic root of 3649550 is about 153.9618447105.

The spelling of 3649550 in words is "three million, six hundred forty-nine thousand, five hundred fifty".