1099642029 has 16 divisors (see below), whose sum is σ = 1532708352. Its totient is φ = 699950768.

The previous prime is 1099642021. The next prime is 1099642057. The reversal of 1099642029 is 9202469901.

It is a cyclic number.

It is not a de Polignac number, because 1099642029 - 2³ = 1099642021 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099642021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24694 + ... + 53000.

It is an arithmetic number, because the mean of its divisors is an integer number (95794272).

Almost surely, 2^1099642029 is an apocalyptic number.

It is an amenable number.

1099642029 is a deficient number, since it is larger than the sum of its proper divisors (433066323).

1099642029 is a wasteful number, since it uses less digits than its factorization.

1099642029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28896.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 1099642029 is about 33160.8508485533. The cubic root of 1099642029 is about 1032.1681256269.

The spelling of 1099642029 in words is "one billion, ninety-nine million, six hundred forty-two thousand, twenty-nine".