3649490 has 32 divisors (see below), whose sum is σ = 7197120. Its totient is φ = 1324224.

The previous prime is 3649487. The next prime is 3649511. The reversal of 3649490 is 949463.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3649490.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8501 + ... + 8919.

It is an arithmetic number, because the mean of its divisors is an integer number (224910).

Almost surely, 2^3649490 is an apocalyptic number.

3649490 is a deficient number, since it is larger than the sum of its proper divisors (3547630).

3649490 is a wasteful number, since it uses less digits than its factorization.

3649490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 3649490 is about 1910.3638396913. The cubic root of 3649490 is about 153.9610009753.

The spelling of 3649490 in words is "three million, six hundred forty-nine thousand, four hundred ninety".