628799022 has 24 divisors (see below), whose sum is σ = 1364227176. Its totient is φ = 209318256.

The previous prime is 628798997. The next prime is 628799023. The reversal of 628799022 is 220997826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628799023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9448 + ... + 36699.

It is an arithmetic number, because the mean of its divisors is an integer number (56842799).

Almost surely, 2^628799022 is an apocalyptic number.

628799022 is an abundant number, since it is smaller than the sum of its proper divisors (735428154).

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

628799022 is a wasteful number, since it uses less digits than its factorization.

628799022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46912 (or 46909 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 628799022 is about 25075.8653290370. The cubic root of 628799022 is about 856.7168048564.

The spelling of 628799022 in words is "six hundred twenty-eight million, seven hundred ninety-nine thousand, twenty-two".