3642406 has 8 divisors (see below), whose sum is σ = 5580000. Its totient is φ = 1782408.

The previous prime is 3642377. The next prime is 3642427. The reversal of 3642406 is 6042463.

3642406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

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, 19281 + ... + 19468.

It is an arithmetic number, because the mean of its divisors is an integer number (697500).

Almost surely, 2^3642406 is an apocalyptic number.

3642406 is a deficient number, since it is larger than the sum of its proper divisors (1937594).

3642406 is a wasteful number, since it uses less digits than its factorization.

3642406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38798.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 3642406 is about 1908.5088420020. The cubic root of 3642406 is about 153.8613189025.

Adding to 3642406 its reverse (6042463), we get a palindrome (9684869).

The spelling of 3642406 in words is "three million, six hundred forty-two thousand, four hundred six".