1099643829 has 16 divisors (see below), whose sum is σ = 1569523200. Its totient is φ = 682738416.

The previous prime is 1099643813. The next prime is 1099643887. The reversal of 1099643829 is 9283469901.

1099643829 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1099643829 - 2⁴ = 1099643813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1099643899) 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, 160129 + ... + 166854.

It is an arithmetic number, because the mean of its divisors is an integer number (98095200).

Almost surely, 2^1099643829 is an apocalyptic number.

1099643829 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1099643829 is a deficient number, since it is larger than the sum of its proper divisors (469879371).

1099643829 is a wasteful number, since it uses less digits than its factorization.

1099643829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327064.

The product of its (nonzero) digits is 839808, while the sum is 51.

The square root of 1099643829 is about 33160.8779889797. The cubic root of 1099643829 is about 1032.1686888107.

The spelling of 1099643829 in words is "one billion, ninety-nine million, six hundred forty-three thousand, eight hundred twenty-nine".