3640622 has 4 divisors (see below), whose sum is σ = 5460936. Its totient is φ = 1820310.

The previous prime is 3640597. The next prime is 3640633. The reversal of 3640622 is 2260463.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 910154 + ... + 910157.

It is an arithmetic number, because the mean of its divisors is an integer number (1365234).

Almost surely, 2^3640622 is an apocalyptic number.

3640622 is a deficient number, since it is larger than the sum of its proper divisors (1820314).

3640622 is a wasteful number, since it uses less digits than its factorization.

3640622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820313.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 3640622 is about 1908.0414041629. The cubic root of 3640622 is about 153.8361950861.

The spelling of 3640622 in words is "three million, six hundred forty thousand, six hundred twenty-two".