1422731856 has 480 divisors, whose sum is σ = 5066342400. Its totient is φ = 339655680.

The previous prime is 1422731831. The next prime is 1422731897. The reversal of 1422731856 is 6581372241.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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 95 ways as a sum of consecutive naturals, for example, 18009225 + ... + 18009303.

It is an arithmetic number, because the mean of its divisors is an integer number (10554880).

Almost surely, 2^1422731856 is an apocalyptic number.

1422731856 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 1422731856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2533171200).

1422731856 is an abundant number, since it is smaller than the sum of its proper divisors (3643610544).

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

1422731856 is a wasteful number, since it uses less digits than its factorization.

1422731856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 154 counting only the distinct ones).

The product of its digits is 80640, while the sum is 39.

The square root of 1422731856 is about 37719.1179112131. The cubic root of 1422731856 is about 1124.7111965825.

The spelling of 1422731856 in words is "one billion, four hundred twenty-two million, seven hundred thirty-one thousand, eight hundred fifty-six".