1322400140 has 12 divisors (see below), whose sum is σ = 2777040336. Its totient is φ = 528960048.

The previous prime is 1322400119. The next prime is 1322400161. The reversal of 1322400140 is 410042231.

It is an interprime number because it is at equal distance from previous prime (1322400119) and next prime (1322400161).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33059984 + ... + 33060023.

It is an arithmetic number, because the mean of its divisors is an integer number (231420028).

Almost surely, 2^1322400140 is an apocalyptic number.

1322400140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322400140 is an abundant number, since it is smaller than the sum of its proper divisors (1454640196).

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

1322400140 is a wasteful number, since it uses less digits than its factorization.

1322400140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66120016 (or 66120014 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1322400140 is about 36364.8200875517. The cubic root of 1322400140 is about 1097.6257717399.

Adding to 1322400140 its reverse (410042231), we get a palindrome (1732442371).

The spelling of 1322400140 in words is "one billion, three hundred twenty-two million, four hundred thousand, one hundred forty".