1099840034 has 4 divisors (see below), whose sum is σ = 1649760054. Its totient is φ = 549920016.

The previous prime is 1099840019. The next prime is 1099840037. The reversal of 1099840034 is 4300489901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4300489901 = 21613 ⋅198977.

It can be written as a sum of positive squares in only one way, i.e., 967521025 + 132319009 = 31105^2 + 11503^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1099840034.

It is not an unprimeable number, because it can be changed into a prime (1099840037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274960007 + ... + 274960010.

Almost surely, 2^1099840034 is an apocalyptic number.

1099840034 is a deficient number, since it is larger than the sum of its proper divisors (549920020).

1099840034 is an equidigital number, since it uses as much as digits as its factorization.

1099840034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549920019.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1099840034 is about 33163.8362376852. The cubic root of 1099840034 is about 1032.2300737212.

The spelling of 1099840034 in words is "one billion, ninety-nine million, eight hundred forty thousand, thirty-four".