1099397248 has 16 divisors (see below), whose sum is σ = 2190205710. Its totient is φ = 549698560.

The previous prime is 1099397231. The next prime is 1099397267. The reversal of 1099397248 is 8427939901.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 587189824 + 512207424 = 24232^2 + 22632^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 1099397195 and 1099397204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4294393 + ... + 4294648.

Almost surely, 2^1099397248 is an apocalyptic number.

It is an amenable number.

1099397248 is a deficient number, since it is larger than the sum of its proper divisors (1090808462).

1099397248 is an frugal number, since it uses more digits than its factorization.

1099397248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8589055 (or 8589043 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 52.

The square root of 1099397248 is about 33157.1598301181. The cubic root of 1099397248 is about 1032.0915328544.

It can be divided in two parts, 10993 and 97248, that added together give a square (108241 = 329²).

The spelling of 1099397248 in words is "one billion, ninety-nine million, three hundred ninety-seven thousand, two hundred forty-eight".