16855944 has 32 divisors (see below), whose sum is σ = 48160320. Its totient is φ = 4815936.

The previous prime is 16855921. The next prime is 16855963. The reversal of 16855944 is 44955861.

It is a super-2 number, since 2×16855944² = 568245696262272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 16855896 and 16855905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49999 + ... + 50334.

It is an arithmetic number, because the mean of its divisors is an integer number (1505010).

Almost surely, 2^16855944 is an apocalyptic number.

16855944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

16855944 is an abundant number, since it is smaller than the sum of its proper divisors (31304376).

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

16855944 is a wasteful number, since it uses less digits than its factorization.

16855944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100349 (or 100345 counting only the distinct ones).

The product of its digits is 172800, while the sum is 42.

The square root of 16855944 is about 4105.5991036632. The cubic root of 16855944 is about 256.3998065943.

The spelling of 16855944 in words is "sixteen million, eight hundred fifty-five thousand, nine hundred forty-four".