622240509 has 16 divisors (see below), whose sum is σ = 905626944. Its totient is φ = 376886400.

The previous prime is 622240483. The next prime is 622240517. The reversal of 622240509 is 905042226.

It is not a de Polignac number, because 622240509 - 2¹² = 622236413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622240529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61039 + ... + 70499.

It is an arithmetic number, because the mean of its divisors is an integer number (56601684).

Almost surely, 2^622240509 is an apocalyptic number.

It is an amenable number.

622240509 is a deficient number, since it is larger than the sum of its proper divisors (283386435).

622240509 is a wasteful number, since it uses less digits than its factorization.

622240509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11468.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 622240509 is about 24944.7491268203. The cubic root of 622240509 is about 853.7278066954.

The spelling of 622240509 in words is "six hundred twenty-two million, two hundred forty thousand, five hundred nine".