1099662138 has 24 divisors (see below), whose sum is σ = 2383711200. Its totient is φ = 366383304.

The previous prime is 1099662133. The next prime is 1099662143. The reversal of 1099662138 is 8312669901.

It is a happy number.

1099662138 is a `hidden beast` number, since 10 + 9 + 9 + 6 + 621 + 3 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1099662133) and next prime (1099662143).

It is a junction number, because it is equal to n+sod(n) for n = 1099662093 and 1099662102.

It is not an unprimeable number, because it can be changed into a prime (1099662133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29043 + ... + 55161.

It is an arithmetic number, because the mean of its divisors is an integer number (99321300).

Almost surely, 2^1099662138 is an apocalyptic number.

1099662138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1099662138 is an abundant number, since it is smaller than the sum of its proper divisors (1284049062).

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

1099662138 is a wasteful number, since it uses less digits than its factorization.

1099662138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28466 (or 28463 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 1099662138 is about 33161.1540510881. The cubic root of 1099662138 is about 1032.1744172933.

The spelling of 1099662138 in words is "one billion, ninety-nine million, six hundred sixty-two thousand, one hundred thirty-eight".