1099854672 has 80 divisors (see below), whose sum is σ = 3418114560. Its totient is φ = 297703296.

The previous prime is 1099854649. The next prime is 1099854683. The reversal of 1099854672 is 2764589901.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79758 + ... + 92525.

It is an arithmetic number, because the mean of its divisors is an integer number (42726432).

Almost surely, 2^1099854672 is an apocalyptic number.

1099854672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1099854672 is an abundant number, since it is smaller than the sum of its proper divisors (2318259888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1099854672 is a wasteful number, since it uses less digits than its factorization.

1099854672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172320 (or 172314 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The square root of 1099854672 is about 33164.0569291515. The cubic root of 1099854672 is about 1032.2346530892.

The spelling of 1099854672 in words is "one billion, ninety-nine million, eight hundred fifty-four thousand, six hundred seventy-two".