308428722340 has 24 divisors (see below), whose sum is σ = 685800336312. Its totient is φ = 116114342400.

The previous prime is 308428722271. The next prime is 308428722347. The reversal of 308428722340 is 43227824803.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 94209708096 + 214219014244 = 306936^2 + 462838^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (308428722347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 453571311 + ... + 453571990.

It is an arithmetic number, because the mean of its divisors is an integer number (28575014013).

Almost surely, 2^308428722340 is an apocalyptic number.

It is an amenable number.

308428722340 is an abundant number, since it is smaller than the sum of its proper divisors (377371613972).

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

308428722340 is a wasteful number, since it uses less digits than its factorization.

308428722340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907143327 (or 907143325 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 43.

The spelling of 308428722340 in words is "three hundred eight billion, four hundred twenty-eight million, seven hundred twenty-two thousand, three hundred forty".