1222949328 has 20 divisors (see below), whose sum is σ = 3159285888. Its totient is φ = 407649760.

The previous prime is 1222949327. The next prime is 1222949339. The reversal of 1222949328 is 8239492221.

It is a self number, because there is not a number n which added to its sum of digits gives 1222949328.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222949323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12739008 + ... + 12739103.

Almost surely, 2^1222949328 is an apocalyptic number.

It is an amenable number.

1222949328 is an abundant number, since it is smaller than the sum of its proper divisors (1936336560).

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

1222949328 is a wasteful number, since it uses less digits than its factorization.

1222949328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25478122 (or 25478116 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 1222949328 is about 34970.6924152211. The cubic root of 1222949328 is about 1069.3900876726.

The spelling of 1222949328 in words is "one billion, two hundred twenty-two million, nine hundred forty-nine thousand, three hundred twenty-eight".