308404376228 has 24 divisors (see below), whose sum is σ = 594740465088. Its totient is φ = 139030236576.

The previous prime is 308404376221. The next prime is 308404376257. The reversal of 308404376228 is 822673404803.

It is a super-2 number, since 2×308404376228² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (308404376221) 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, 68961176 + ... + 68965647.

It is an arithmetic number, because the mean of its divisors is an integer number (24780852712).

Almost surely, 2^308404376228 is an apocalyptic number.

It is an amenable number.

308404376228 is a deficient number, since it is larger than the sum of its proper divisors (286336088860).

308404376228 is a wasteful number, since it uses less digits than its factorization.

308404376228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137926883 (or 137926881 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 47.

The spelling of 308404376228 in words is "three hundred eight billion, four hundred four million, three hundred seventy-six thousand, two hundred twenty-eight".