622248628 has 6 divisors (see below), whose sum is σ = 1088935106. Its totient is φ = 311124312.

The previous prime is 622248611. The next prime is 622248629. The reversal of 622248628 is 826842226.

It can be written as a sum of positive squares in only one way, i.e., 341954064 + 280294564 = 18492^2 + 16742^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (622248629) by changing a digit.

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, 77781075 + ... + 77781082.

Almost surely, 2^622248628 is an apocalyptic number.

It is an amenable number.

622248628 is a deficient number, since it is larger than the sum of its proper divisors (466686478).

622248628 is a wasteful number, since it uses less digits than its factorization.

622248628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155562161 (or 155562159 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The square root of 622248628 is about 24944.9118659497. The cubic root of 622248628 is about 853.7315198288.

The spelling of 622248628 in words is "six hundred twenty-two million, two hundred forty-eight thousand, six hundred twenty-eight".