1322606420 has 48 divisors (see below), whose sum is σ = 2801554560. Its totient is φ = 524479104.

The previous prime is 1322606381. The next prime is 1322606437. The reversal of 1322606420 is 246062231.

It is a self number, because there is not a number n which added to its sum of digits gives 1322606420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1438721 + ... + 1439639.

It is an arithmetic number, because the mean of its divisors is an integer number (58365720).

Almost surely, 2^1322606420 is an apocalyptic number.

1322606420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322606420 is an abundant number, since it is smaller than the sum of its proper divisors (1478948140).

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

1322606420 is a wasteful number, since it uses less digits than its factorization.

1322606420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472 (or 1470 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1322606420 is about 36367.6562346269. The cubic root of 1322606420 is about 1097.6828413226.

Adding to 1322606420 its reverse (246062231), we get a palindrome (1568668651).

The spelling of 1322606420 in words is "one billion, three hundred twenty-two million, six hundred six thousand, four hundred twenty".