1522422 has 48 divisors (see below), whose sum is σ = 3734640. Its totient is φ = 459360.

The previous prime is 1522399. The next prime is 1522427. The reversal of 1522422 is 2242251.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1522395 and 1522404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1522427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6418 + ... + 6650.

It is an arithmetic number, because the mean of its divisors is an integer number (77805).

2^1522422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1522422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1867320).

1522422 is an abundant number, since it is smaller than the sum of its proper divisors (2212218).

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

1522422 is a wasteful number, since it uses less digits than its factorization.

1522422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 249 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 1522422 is about 1233.8646603254. The cubic root of 1522422 is about 115.0389785954.

Adding to 1522422 its reverse (2242251), we get a palindrome (3764673).

The spelling of 1522422 in words is "one million, five hundred twenty-two thousand, four hundred twenty-two".