1222867464 has 192 divisors, whose sum is σ = 3876566400. Its totient is φ = 313030656.

The previous prime is 1222867433. The next prime is 1222867483. The reversal of 1222867464 is 4647682221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a nude number because it is divisible by every one of its digits.

Its product of digits (258048) is a multiple of the sum of its prime factors (512).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2989692 + ... + 2990100.

It is an arithmetic number, because the mean of its divisors is an integer number (20190450).

Almost surely, 2^1222867464 is an apocalyptic number.

1222867464 is a gapful number since it is divisible by the number (14) 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 1222867464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1938283200).

1222867464 is an abundant number, since it is smaller than the sum of its proper divisors (2653698936).

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

1222867464 is a wasteful number, since it uses less digits than its factorization.

1222867464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512 (or 471 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 1222867464 is about 34969.5219298177. The cubic root of 1222867464 is about 1069.3662255492.

The spelling of 1222867464 in words is "one billion, two hundred twenty-two million, eight hundred sixty-seven thousand, four hundred sixty-four".