1422404144 has 240 divisors, whose sum is σ = 3686951520. Its totient is φ = 526417920.

The previous prime is 1422404119. The next prime is 1422404149. The reversal of 1422404144 is 4414042241.

It is not an unprimeable number, because it can be changed into a prime (1422404149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10382444 + ... + 10382580.

It is an arithmetic number, because the mean of its divisors is an integer number (15362298).

Almost surely, 2^1422404144 is an apocalyptic number.

1422404144 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 1422404144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1843475760).

1422404144 is an abundant number, since it is smaller than the sum of its proper divisors (2264547376).

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

1422404144 is a wasteful number, since it uses less digits than its factorization.

1422404144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 26.

The square root of 1422404144 is about 37714.7735509575. The cubic root of 1422404144 is about 1124.6248346403.

Adding to 1422404144 its reverse (4414042241), we get a palindrome (5836446385).

The spelling of 1422404144 in words is "one billion, four hundred twenty-two million, four hundred four thousand, one hundred forty-four".