1422631100 has 144 divisors (see below), whose sum is σ = 3470611200. Its totient is φ = 501811200.

The previous prime is 1422631097. The next prime is 1422631117. The reversal of 1422631100 is 11362241.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7148801 + ... + 7148999.

Almost surely, 2^1422631100 is an apocalyptic number.

1422631100 is a gapful number since it is divisible by the number (10) 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 1422631100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1735305600).

1422631100 is an abundant number, since it is smaller than the sum of its proper divisors (2047980100).

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

1422631100 is a wasteful number, since it uses less digits than its factorization.

1422631100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 381 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1422631100 is about 37717.7822783896. The cubic root of 1422631100 is about 1124.6846457662.

Adding to 1422631100 its reverse (11362241), we get a palindrome (1433993341).

The spelling of 1422631100 in words is "one billion, four hundred twenty-two million, six hundred thirty-one thousand, one hundred".