1322420 has 24 divisors (see below), whose sum is σ = 3030048. Its totient is φ = 480800.

The previous prime is 1322389. The next prime is 1322423. The reversal of 1322420 is 242231.

It is a junction number, because it is equal to n+sod(n) for n = 1322395 and 1322404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2786 + ... + 3225.

It is an arithmetic number, because the mean of its divisors is an integer number (126252).

2^1322420 is an apocalyptic number.

1322420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322420 is an abundant number, since it is smaller than the sum of its proper divisors (1707628).

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

1322420 is a wasteful number, since it uses less digits than its factorization.

1322420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6031 (or 6029 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1322420 is about 1149.9652168653. The cubic root of 1322420 is about 109.7631266481.

Adding to 1322420 its reverse (242231), we get a palindrome (1564651).

It can be divided in two parts, 132 and 2420, that added together give a palindrome (2552).

The spelling of 1322420 in words is "one million, three hundred twenty-two thousand, four hundred twenty".