16938355 has 8 divisors (see below), whose sum is σ = 23229792. Its totient is φ = 11614848.

The previous prime is 16938353. The next prime is 16938359. The reversal of 16938355 is 55383961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16938355 - 2¹ = 16938353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16938353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241942 + ... + 242011.

It is an arithmetic number, because the mean of its divisors is an integer number (2903724).

Almost surely, 2^16938355 is an apocalyptic number.

16938355 is a deficient number, since it is larger than the sum of its proper divisors (6291437).

16938355 is an equidigital number, since it uses as much as digits as its factorization.

16938355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483965.

The product of its digits is 97200, while the sum is 40.

The square root of 16938355 is about 4115.6232820801. The cubic root of 16938355 is about 256.8169852784.

The spelling of 16938355 in words is "sixteen million, nine hundred thirty-eight thousand, three hundred fifty-five".