1306662248 has 8 divisors (see below), whose sum is σ = 2449991730. Its totient is φ = 653331120.

The previous prime is 1306662241. The next prime is 1306662257. The reversal of 1306662248 is 8422666031.

It can be written as a sum of positive squares in only one way, i.e., 1216753924 + 89908324 = 34882^2 + 9482^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1306662241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81666383 + ... + 81666398.

Almost surely, 2^1306662248 is an apocalyptic number.

It is an amenable number.

1306662248 is a deficient number, since it is larger than the sum of its proper divisors (1143329482).

1306662248 is a wasteful number, since it uses less digits than its factorization.

1306662248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163332787 (or 163332783 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 1306662248 is about 36147.7834451851. The cubic root of 1306662248 is about 1093.2540995360.

The spelling of 1306662248 in words is "one billion, three hundred six million, six hundred sixty-two thousand, two hundred forty-eight".