16378038 has 80 divisors (see below), whose sum is σ = 41033520. Its totient is φ = 4852224.

The previous prime is 16378009. The next prime is 16378039. The reversal of 16378038 is 83087361.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16377993 and 16378011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16378039) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 52170 + ... + 52482.

It is an arithmetic number, because the mean of its divisors is an integer number (512919).

Almost surely, 2^16378038 is an apocalyptic number.

16378038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16378038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20516760).

16378038 is an abundant number, since it is smaller than the sum of its proper divisors (24655482).

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

16378038 is a wasteful number, since it uses less digits than its factorization.

16378038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363 (or 354 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 16378038 is about 4046.9788731843. The cubic root of 16378038 is about 253.9533570087.

The spelling of 16378038 in words is "sixteen million, three hundred seventy-eight thousand, thirty-eight".