3644622 has 16 divisors (see below), whose sum is σ = 8099280. Its totient is φ = 1214856.

The previous prime is 3644621. The next prime is 3644629. The reversal of 3644622 is 2264463.

3644622 is a `hidden beast` number, since 36 + 4 + 4 + 622 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33693 + ... + 33800.

It is an arithmetic number, because the mean of its divisors is an integer number (506205).

Almost surely, 2^3644622 is an apocalyptic number.

3644622 is an abundant number, since it is smaller than the sum of its proper divisors (4454658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3644622 is a wasteful number, since it uses less digits than its factorization.

3644622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67504 (or 67498 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 3644622 is about 1909.0893116876. The cubic root of 3644622 is about 153.8925150918.

The spelling of 3644622 in words is "three million, six hundred forty-four thousand, six hundred twenty-two".