1099894816 has 24 divisors (see below), whose sum is σ = 2169299664. Its totient is φ = 548961600.

The previous prime is 1099894811. The next prime is 1099894897. The reversal of 1099894816 is 6184989901.

It is not an unprimeable number, because it can be changed into a prime (1099894811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12510 + ... + 48541.

It is an arithmetic number, because the mean of its divisors is an integer number (90387486).

Almost surely, 2^1099894816 is an apocalyptic number.

1099894816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1099894816 is a deficient number, since it is larger than the sum of its proper divisors (1069404848).

1099894816 is an equidigital number, since it uses as much as digits as its factorization.

1099894816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61624 (or 61616 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 55.

The square root of 1099894816 is about 33164.6621571817. The cubic root of 1099894816 is about 1032.2472115737.

The spelling of 1099894816 in words is "one billion, ninety-nine million, eight hundred ninety-four thousand, eight hundred sixteen".