1422401344 has 84 divisors (see below), whose sum is σ = 3493215264. Its totient is φ = 562678272.

The previous prime is 1422401341. The next prime is 1422401369. The reversal of 1422401344 is 4431042241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422401341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66319 + ... + 85105.

It is an arithmetic number, because the mean of its divisors is an integer number (41585896).

Almost surely, 2^1422401344 is an apocalyptic number.

1422401344 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 1422401344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1746607632).

1422401344 is an abundant number, since it is smaller than the sum of its proper divisors (2070813920).

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

1422401344 is a wasteful number, since it uses less digits than its factorization.

1422401344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18832 (or 18809 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 1422401344 is about 37714.7364302072. The cubic root of 1422401344 is about 1124.6240966991.

Adding to 1422401344 its reverse (4431042241), we get a palindrome (5853443585).

The spelling of 1422401344 in words is "one billion, four hundred twenty-two million, four hundred one thousand, three hundred forty-four".