1422556256 has 192 divisors, whose sum is σ = 3383493120. Its totient is φ = 581898240.

The previous prime is 1422556249. The next prime is 1422556259. The reversal of 1422556256 is 6526552241.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422556259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17139191 + ... + 17139273.

It is an arithmetic number, because the mean of its divisors is an integer number (17622360).

Almost surely, 2^1422556256 is an apocalyptic number.

1422556256 is a gapful number since it is divisible by the number (16) 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 1422556256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1691746560).

1422556256 is an abundant number, since it is smaller than the sum of its proper divisors (1960936864).

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

1422556256 is a wasteful number, since it uses less digits than its factorization.

1422556256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 221 counting only the distinct ones).

The product of its digits is 144000, while the sum is 38.

The square root of 1422556256 is about 37716.7901073249. The cubic root of 1422556256 is about 1124.6649223645.

The spelling of 1422556256 in words is "one billion, four hundred twenty-two million, five hundred fifty-six thousand, two hundred fifty-six".