1222629628 has 24 divisors (see below), whose sum is σ = 2397198384. Its totient is φ = 540720000.

The previous prime is 1222629619. The next prime is 1222629631. The reversal of 1222629628 is 8269262221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373873 + ... + 377128.

It is an arithmetic number, because the mean of its divisors is an integer number (99883266).

Almost surely, 2^1222629628 is an apocalyptic number.

It is an amenable number.

1222629628 is a deficient number, since it is larger than the sum of its proper divisors (1174568756).

1222629628 is a wasteful number, since it uses less digits than its factorization.

1222629628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751053 (or 751051 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 1222629628 is about 34966.1211460465. The cubic root of 1222629628 is about 1069.2968938940.

The spelling of 1222629628 in words is "one billion, two hundred twenty-two million, six hundred twenty-nine thousand, six hundred twenty-eight".