1099748858 has 8 divisors (see below), whose sum is σ = 1776517428. Its totient is φ = 507576384.

The previous prime is 1099748833. The next prime is 1099748873. The reversal of 1099748858 is 8588479901.

It can be written as a sum of positive squares in 2 ways, for example, as 1003178929 + 96569929 = 31673^2 + 9827^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1099748797 and 1099748806.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21148991 + ... + 21149042.

Almost surely, 2^1099748858 is an apocalyptic number.

1099748858 is a deficient number, since it is larger than the sum of its proper divisors (676768570).

1099748858 is a wasteful number, since it uses less digits than its factorization.

1099748858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42298048.

The product of its (nonzero) digits is 5806080, while the sum is 59.

The square root of 1099748858 is about 33162.4615793219. The cubic root of 1099748858 is about 1032.2015492064.

The spelling of 1099748858 in words is "one billion, ninety-nine million, seven hundred forty-eight thousand, eight hundred fifty-eight".