1322050640 has 40 divisors (see below), whose sum is σ = 3079389960. Its totient is φ = 527853056.

The previous prime is 1322050573. The next prime is 1322050661. The reversal of 1322050640 is 460502231.

It can be written as a sum of positive squares in 4 ways, for example, as 76807696 + 1245242944 = 8764^2 + 35288^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29726 + ... + 59394.

It is an arithmetic number, because the mean of its divisors is an integer number (76984749).

Almost surely, 2^1322050640 is an apocalyptic number.

1322050640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322050640 is an abundant number, since it is smaller than the sum of its proper divisors (1757339320).

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

1322050640 is a wasteful number, since it uses less digits than its factorization.

1322050640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30239 (or 30233 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1322050640 is about 36360.0143014273. The cubic root of 1322050640 is about 1097.5290652549.

Adding to 1322050640 its reverse (460502231), we get a palindrome (1782552871).

The spelling of 1322050640 in words is "one billion, three hundred twenty-two million, fifty thousand, six hundred forty".