16378856 has 16 divisors (see below), whose sum is σ = 33072900. Its totient is φ = 7559424.

The previous prime is 16378853. The next prime is 16378861. The reversal of 16378856 is 65887361.

It can be written as a sum of positive squares in 2 ways, for example, as 15476356 + 902500 = 3934^2 + 950^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (16378853) 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, 78641 + ... + 78848.

Almost surely, 2^16378856 is an apocalyptic number.

It is an amenable number.

16378856 is an abundant number, since it is smaller than the sum of its proper divisors (16694044).

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

16378856 is a wasteful number, since it uses less digits than its factorization.

16378856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157508 (or 157504 counting only the distinct ones).

The product of its digits is 241920, while the sum is 44.

The square root of 16378856 is about 4047.0799349655. The cubic root of 16378856 is about 253.9575848327.

The spelling of 16378856 in words is "sixteen million, three hundred seventy-eight thousand, eight hundred fifty-six".