1422403668 has 108 divisors (see below), whose sum is σ = 4365323872. Its totient is φ = 382475520.

The previous prime is 1422403663. The next prime is 1422403679. The reversal of 1422403668 is 8663042241.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422403663) 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 35 ways as a sum of consecutive naturals, for example, 63063 + ... + 82593.

Almost surely, 2^1422403668 is an apocalyptic number.

1422403668 is a gapful number since it is divisible by the number (18) 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 1422403668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2182661936).

1422403668 is an abundant number, since it is smaller than the sum of its proper divisors (2942920204).

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

1422403668 is a wasteful number, since it uses less digits than its factorization.

1422403668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19582 (or 19560 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 1422403668 is about 37714.7672404325. The cubic root of 1422403668 is about 1124.6247091903.

The spelling of 1422403668 in words is "one billion, four hundred twenty-two million, four hundred three thousand, six hundred sixty-eight".