1308226988 has 12 divisors (see below), whose sum is σ = 2409891960. Its totient is φ = 619686432.

The previous prime is 1308226987. The next prime is 1308227021. The reversal of 1308226988 is 8896228031.

It is a super-3 number, since 3×1308226988³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1308226981) 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, 8606681 + ... + 8606832.

It is an arithmetic number, because the mean of its divisors is an integer number (200824330).

Almost surely, 2^1308226988 is an apocalyptic number.

It is an amenable number.

1308226988 is a deficient number, since it is larger than the sum of its proper divisors (1101664972).

1308226988 is a wasteful number, since it uses less digits than its factorization.

1308226988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17213536 (or 17213534 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 47.

The square root of 1308226988 is about 36169.4206201869. The cubic root of 1308226988 is about 1093.6903193863.

The spelling of 1308226988 in words is "one billion, three hundred eight million, two hundred twenty-six thousand, nine hundred eighty-eight".