1222636480 has 112 divisors (see below), whose sum is σ = 3174028704. Its totient is φ = 445870080.

The previous prime is 1222636439. The next prime is 1222636517. The reversal of 1222636480 is 846362221.

It is a nialpdrome in base 14.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 343510 + ... + 347050.

It is an arithmetic number, because the mean of its divisors is an integer number (28339542).

Almost surely, 2^1222636480 is an apocalyptic number.

1222636480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222636480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1587014352).

1222636480 is an abundant number, since it is smaller than the sum of its proper divisors (1951392224).

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

1222636480 is a wasteful number, since it uses less digits than its factorization.

1222636480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3654 (or 3644 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 1222636480 is about 34966.2191264655. The cubic root of 1222636480 is about 1069.2988914487.

The spelling of 1222636480 in words is "one billion, two hundred twenty-two million, six hundred thirty-six thousand, four hundred eighty".