322135540 has 12 divisors (see below), whose sum is σ = 676484676. Its totient is φ = 128854208.

The previous prime is 322135529. The next prime is 322135547. The reversal of 322135540 is 45531223.

It can be written as a sum of positive squares in 2 ways, for example, as 38415204 + 283720336 = 6198^2 + 16844^2 .

It is a super-2 number, since 2×322135540² = 207542612262183200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322135547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8053369 + ... + 8053408.

It is an arithmetic number, because the mean of its divisors is an integer number (56373723).

Almost surely, 2^322135540 is an apocalyptic number.

It is an amenable number.

322135540 is an abundant number, since it is smaller than the sum of its proper divisors (354349136).

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

322135540 is a wasteful number, since it uses less digits than its factorization.

322135540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16106786 (or 16106784 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 322135540 is about 17948.1347220261. The cubic root of 322135540 is about 685.5085572897.

Adding to 322135540 its reverse (45531223), we get a palindrome (367666763).

The spelling of 322135540 in words is "three hundred twenty-two million, one hundred thirty-five thousand, five hundred forty".