1099408 has 10 divisors (see below), whose sum is σ = 2130134. Its totient is φ = 549696.

The previous prime is 1099393. The next prime is 1099409. The reversal of 1099408 is 8049901.

It can be written as a sum of positive squares in only one way, i.e., 898704 + 200704 = 948^2 + 448^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1099408.

It is not an unprimeable number, because it can be changed into a prime (1099409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34341 + ... + 34372.

2^1099408 is an apocalyptic number.

It is an amenable number.

1099408 is a deficient number, since it is larger than the sum of its proper divisors (1030726).

1099408 is an equidigital number, since it uses as much as digits as its factorization.

1099408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68721 (or 68715 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1099408 is about 1048.5265852614. The cubic root of 1099408 is about 103.2094897429.

The spelling of 1099408 in words is "one million, ninety-nine thousand, four hundred eight".