451414021422 has 128 divisors (see below), whose sum is σ = 1178255490048. Its totient is φ = 111887308800.

The previous prime is 451414021391. The next prime is 451414021441. The reversal of 451414021422 is 224120414154.

It is a self number, because there is not a number n which added to its sum of digits gives 451414021422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6378672 + ... + 6449052.

It is an arithmetic number, because the mean of its divisors is an integer number (9205121016).

Almost surely, 2^451414021422 is an apocalyptic number.

451414021422 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 451414021422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589127745024).

451414021422 is an abundant number, since it is smaller than the sum of its proper divisors (726841468626).

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

451414021422 is a wasteful number, since it uses less digits than its factorization.

451414021422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71114.

The product of its (nonzero) digits is 10240, while the sum is 30.

Adding to 451414021422 its reverse (224120414154), we get a palindrome (675534435576).

The spelling of 451414021422 in words is "four hundred fifty-one billion, four hundred fourteen million, twenty-one thousand, four hundred twenty-two".