622045641 has 12 divisors (see below), whose sum is σ = 964805712. Its totient is φ = 355454568.

The previous prime is 622045639. The next prime is 622045663. The reversal of 622045641 is 146540226.

It is not a de Polignac number, because 622045641 - 2¹ = 622045639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 622045599 and 622045608.

It is not an unprimeable number, because it can be changed into a prime (622045631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2115655 + ... + 2115948.

It is an arithmetic number, because the mean of its divisors is an integer number (80400476).

Almost surely, 2^622045641 is an apocalyptic number.

It is an amenable number.

622045641 is a deficient number, since it is larger than the sum of its proper divisors (342760071).

622045641 is a wasteful number, since it uses less digits than its factorization.

622045641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4231620 (or 4231613 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 622045641 is about 24940.8428285814. The cubic root of 622045641 is about 853.6386763149.

Adding to 622045641 its reverse (146540226), we get a palindrome (768585867).

The spelling of 622045641 in words is "six hundred twenty-two million, forty-five thousand, six hundred forty-one".