622010644 has 6 divisors (see below), whose sum is σ = 1088518634. Its totient is φ = 311005320.

The previous prime is 622010639. The next prime is 622010659. The reversal of 622010644 is 446010226.

It can be written as a sum of positive squares in only one way, i.e., 600740100 + 21270544 = 24510^2 + 4612^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77751327 + ... + 77751334.

Almost surely, 2^622010644 is an apocalyptic number.

It is an amenable number.

622010644 is a deficient number, since it is larger than the sum of its proper divisors (466507990).

622010644 is a wasteful number, since it uses less digits than its factorization.

622010644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155502665 (or 155502663 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 622010644 is about 24940.1412185256. The cubic root of 622010644 is about 853.6226671182.

The spelling of 622010644 in words is "six hundred twenty-two million, ten thousand, six hundred forty-four".