1308420880 has 40 divisors (see below), whose sum is σ = 3276087192. Its totient is φ = 483108864.

The previous prime is 1308420877. The next prime is 1308420901. The reversal of 1308420880 is 880248031.

It can be written as a sum of positive squares in 4 ways, for example, as 65999376 + 1242421504 = 8124^2 + 35248^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628009 + ... + 630088.

Almost surely, 2^1308420880 is an apocalyptic number.

1308420880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1308420880 is an abundant number, since it is smaller than the sum of its proper divisors (1967666312).

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

1308420880 is a wasteful number, since it uses less digits than its factorization.

1308420880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258123 (or 1258117 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 1308420880 is about 36172.1008513467. The cubic root of 1308420880 is about 1093.7443485749.

The spelling of 1308420880 in words is "one billion, three hundred eight million, four hundred twenty thousand, eight hundred eighty".