1099867090 has 16 divisors (see below), whose sum is σ = 2262583872. Its totient is φ = 377097264.

The previous prime is 1099867057. The next prime is 1099867091. The reversal of 1099867090 is 907689901.

It is not an unprimeable number, because it can be changed into a prime (1099867091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7856124 + ... + 7856263.

It is an arithmetic number, because the mean of its divisors is an integer number (141411492).

Almost surely, 2^1099867090 is an apocalyptic number.

1099867090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1099867090 is an abundant number, since it is smaller than the sum of its proper divisors (1162716782).

1099867090 is a wasteful number, since it uses less digits than its factorization.

1099867090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15712401.

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 1099867090 is about 33164.2441493847. The cubic root of 1099867090 is about 1032.2385379181.

The spelling of 1099867090 in words is "one billion, ninety-nine million, eight hundred sixty-seven thousand, ninety".