1222457796 has 144 divisors (see below), whose sum is σ = 3739008000. Its totient is φ = 328971456.

The previous prime is 1222457791. The next prime is 1222457801. The reversal of 1222457796 is 6977542221.

1222457796 is a `hidden beast` number, since 122 + 2 + 457 + 79 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (1222457791) and next prime (1222457801).

It is not an unprimeable number, because it can be changed into a prime (1222457791) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 952171 + ... + 953453.

Almost surely, 2^1222457796 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1222457796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1869504000).

1222457796 is an abundant number, since it is smaller than the sum of its proper divisors (2516550204).

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

1222457796 is a wasteful number, since it uses less digits than its factorization.

1222457796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1518 (or 1513 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 1222457796 is about 34963.6639384376. The cubic root of 1222457796 is about 1069.2467974930.

The spelling of 1222457796 in words is "one billion, two hundred twenty-two million, four hundred fifty-seven thousand, seven hundred ninety-six".