1308688416 has 72 divisors (see below), whose sum is σ = 4253243904. Its totient is φ = 373910400.

The previous prime is 1308688399. The next prime is 1308688427. The reversal of 1308688416 is 6148868031.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322560 + ... + 326591.

It is an arithmetic number, because the mean of its divisors is an integer number (59072832).

Almost surely, 2^1308688416 is an apocalyptic number.

1308688416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1308688416 is an abundant number, since it is smaller than the sum of its proper divisors (2944555488).

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

1308688416 is a wasteful number, since it uses less digits than its factorization.

1308688416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649174 (or 649163 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 1308688416 is about 36175.7987610502. The cubic root of 1308688416 is about 1093.8188903503.

The spelling of 1308688416 in words is "one billion, three hundred eight million, six hundred eighty-eight thousand, four hundred sixteen".