622305849 has 32 divisors (see below), whose sum is σ = 943635456. Its totient is φ = 361437120.

The previous prime is 622305839. The next prime is 622305869. The reversal of 622305849 is 948503226.

It is a happy number.

It is not a de Polignac number, because 622305849 - 2¹⁹ = 621781561 is a prime.

It is a super-2 number, since 2×622305849² = 774529139399221602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (622305839) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78004 + ... + 85610.

It is an arithmetic number, because the mean of its divisors is an integer number (29488608).

Almost surely, 2^622305849 is an apocalyptic number.

It is an amenable number.

622305849 is a deficient number, since it is larger than the sum of its proper divisors (321329607).

622305849 is a wasteful number, since it uses less digits than its factorization.

622305849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7725.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 622305849 is about 24946.0587869106. The cubic root of 622305849 is about 853.7576882935.

The spelling of 622305849 in words is "six hundred twenty-two million, three hundred five thousand, eight hundred forty-nine".