3643490 has 8 divisors (see below), whose sum is σ = 6558300. Its totient is φ = 1457392.

The previous prime is 3643483. The next prime is 3643511. The reversal of 3643490 is 943463.

It is a happy number.

3643490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3024121 + 619369 = 1739^2 + 787^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 182165 + ... + 182184.

Almost surely, 2^3643490 is an apocalyptic number.

3643490 is a deficient number, since it is larger than the sum of its proper divisors (2914810).

3643490 is a wasteful number, since it uses less digits than its factorization.

3643490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364356.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 3643490 is about 1908.7928122245. The cubic root of 3643490 is about 153.8765807127.

The spelling of 3643490 in words is "three million, six hundred forty-three thousand, four hundred ninety".