622543240 has 64 divisors (see below), whose sum is σ = 1577387520. Its totient is φ = 219072000.

The previous prime is 622543211. The next prime is 622543249. The reversal of 622543240 is 42345226.

It is a junction number, because it is equal to n+sod(n) for n = 622543199 and 622543208.

It is not an unprimeable number, because it can be changed into a prime (622543249) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 9181 + ... + 36460.

It is an arithmetic number, because the mean of its divisors is an integer number (24646680).

Almost surely, 2^622543240 is an apocalyptic number.

It is an amenable number.

622543240 is an abundant number, since it is smaller than the sum of its proper divisors (954844280).

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

622543240 is a wasteful number, since it uses less digits than its factorization.

622543240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45694 (or 45690 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 622543240 is about 24950.8164195082. The cubic root of 622543240 is about 853.8662354684.

Adding to 622543240 its reverse (42345226), we get a palindrome (664888466).

The spelling of 622543240 in words is "six hundred twenty-two million, five hundred forty-three thousand, two hundred forty".