1322480 has 40 divisors (see below), whose sum is σ = 3136704. Its totient is φ = 518400.

The previous prime is 1322471. The next prime is 1322483. The reversal of 1322480 is 842231.

It is a tau number, because it is divible by the number of its divisors (40).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322483) 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, 4745 + ... + 5015.

2^1322480 is an apocalyptic number.

1322480 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 1322480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1568352).

1322480 is an abundant number, since it is smaller than the sum of its proper divisors (1814224).

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

1322480 is a wasteful number, since it uses less digits than its factorization.

1322480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1322480 is about 1149.9913043150. The cubic root of 1322480 is about 109.7647866573.

Adding to 1322480 its sum of digits (20), we get a square (1322500 = 1150²).

Subtracting from 1322480 its reverse (842231), we obtain a square (480249 = 693²).

The spelling of 1322480 in words is "one million, three hundred twenty-two thousand, four hundred eighty".