1422401340400 has 60 divisors (see below), whose sum is σ = 3432373709112. Its totient is φ = 566454065920.

The previous prime is 1422401340391. The next prime is 1422401340403. The reversal of 1422401340400 is 40431042241.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422401340403) 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, 7741807 + ... + 7923406.

Almost surely, 2^{1422401340400} is an apocalyptic number.

1422401340400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1422401340400 is an abundant number, since it is smaller than the sum of its proper divisors (2009972368712).

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

1422401340400 is a wasteful number, since it uses less digits than its factorization.

1422401340400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15665458 (or 15665447 counting only the distinct ones).

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

Adding to 1422401340400 its reverse (40431042241), we get a palindrome (1462832382641).

The spelling of 1422401340400 in words is "one trillion, four hundred twenty-two billion, four hundred one million, three hundred forty thousand, four hundred".