622273378 has 4 divisors (see below), whose sum is σ = 933410070. Its totient is φ = 311136688.

The previous prime is 622273357. The next prime is 622273381. The reversal of 622273378 is 873372226.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 584043889 + 38229489 = 24167^2 + 6183^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 622273378.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155568343 + ... + 155568346.

Almost surely, 2^622273378 is an apocalyptic number.

622273378 is a deficient number, since it is larger than the sum of its proper divisors (311136692).

622273378 is a wasteful number, since it uses less digits than its factorization.

622273378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311136691.

The product of its digits is 169344, while the sum is 40.

The square root of 622273378 is about 24945.4079541706. The cubic root of 622273378 is about 853.7428387636.

The spelling of 622273378 in words is "six hundred twenty-two million, two hundred seventy-three thousand, three hundred seventy-eight".