1306488444 has 48 divisors (see below), whose sum is σ = 3077954208. Its totient is φ = 431300608.

The previous prime is 1306488427. The next prime is 1306488467. The reversal of 1306488444 is 4448846031.

It is a super-2 number, since 2×1306488444² = 3413824108611082272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1306488396 and 1306488405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1072924 + ... + 1074140.

It is an arithmetic number, because the mean of its divisors is an integer number (64124046).

Almost surely, 2^1306488444 is an apocalyptic number.

It is an amenable number.

1306488444 is an abundant number, since it is smaller than the sum of its proper divisors (1771465764).

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

1306488444 is a wasteful number, since it uses less digits than its factorization.

1306488444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014 (or 2012 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 42.

The square root of 1306488444 is about 36145.3792897515. The cubic root of 1306488444 is about 1093.2056247902.

The spelling of 1306488444 in words is "one billion, three hundred six million, four hundred eighty-eight thousand, four hundred forty-four".