16938078 has 16 divisors (see below), whose sum is σ = 33918480. Its totient is φ = 5638976.

The previous prime is 16938067. The next prime is 16938079. The reversal of 16938078 is 87083961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16938079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6226 + ... + 8522.

It is an arithmetic number, because the mean of its divisors is an integer number (2119905).

Almost surely, 2^16938078 is an apocalyptic number.

16938078 is an abundant number, since it is smaller than the sum of its proper divisors (16980402).

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

16938078 is a wasteful number, since it uses less digits than its factorization.

16938078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 16938078 is about 4115.5896296886. The cubic root of 16938078 is about 256.8155853256.

The spelling of 16938078 in words is "sixteen million, nine hundred thirty-eight thousand, seventy-eight".