1222389760 has 104 divisors (see below), whose sum is σ = 3106813536. Its totient is φ = 460062720.

The previous prime is 1222389731. The next prime is 1222389781. The reversal of 1222389760 is 679832221.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346405 + ... + 349915.

Almost surely, 2^1222389760 is an apocalyptic number.

1222389760 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 1222389760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1553406768).

1222389760 is an abundant number, since it is smaller than the sum of its proper divisors (1884423776).

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

1222389760 is an equidigital number, since it uses as much as digits as its factorization.

1222389760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557 (or 3535 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1222389760 is about 34962.6909719489. The cubic root of 1222389760 is about 1069.2269607824.

The spelling of 1222389760 in words is "one billion, two hundred twenty-two million, three hundred eighty-nine thousand, seven hundred sixty".