1322020364 has 24 divisors (see below), whose sum is σ = 2680264608. Its totient is φ = 558817920.

The previous prime is 1322020363. The next prime is 1322020367. The reversal of 1322020364 is 4630202231.

It is not an unprimeable number, because it can be changed into a prime (1322020363) 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, 321347 + ... + 325434.

It is an arithmetic number, because the mean of its divisors is an integer number (111677692).

Almost surely, 2^1322020364 is an apocalyptic number.

1322020364 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1322020364 is an abundant number, since it is smaller than the sum of its proper divisors (1358244244).

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

1322020364 is a wasteful number, since it uses less digits than its factorization.

1322020364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646865 (or 646863 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1322020364 is about 36359.5979625738. The cubic root of 1322020364 is about 1097.5206870978.

Adding to 1322020364 its reverse (4630202231), we get a palindrome (5952222595).

The spelling of 1322020364 in words is "one billion, three hundred twenty-two million, twenty thousand, three hundred sixty-four".