1422403620 has 96 divisors (see below), whose sum is σ = 4352818176. Its totient is φ = 344188800.

The previous prime is 1422403589. The next prime is 1422403627. The reversal of 1422403620 is 263042241.

It is not an unprimeable number, because it can be changed into a prime (1422403627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 425355 + ... + 428685.

It is an arithmetic number, because the mean of its divisors is an integer number (45341856).

Almost surely, 2^1422403620 is an apocalyptic number.

1422403620 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 1422403620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2176409088).

1422403620 is an abundant number, since it is smaller than the sum of its proper divisors (2930414556).

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

1422403620 is a wasteful number, since it uses less digits than its factorization.

1422403620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4001 (or 3999 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1422403620 is about 37714.7666040770. The cubic root of 1422403620 is about 1124.6246965399.

Adding to 1422403620 its reverse (263042241), we get a palindrome (1685445861).

The spelling of 1422403620 in words is "one billion, four hundred twenty-two million, four hundred three thousand, six hundred twenty".