16940235 has 32 divisors (see below), whose sum is σ = 29494080. Its totient is φ = 8252928.

The previous prime is 16940221. The next prime is 16940239. The reversal of 16940235 is 53204961.

It is not a de Polignac number, because 16940235 - 2⁴ = 16940219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16940239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20857 + ... + 21653.

It is an arithmetic number, because the mean of its divisors is an integer number (921690).

Almost surely, 2^16940235 is an apocalyptic number.

16940235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16940235 is a deficient number, since it is larger than the sum of its proper divisors (12553845).

16940235 is a wasteful number, since it uses less digits than its factorization.

16940235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 16940235 is about 4115.8516737123. The cubic root of 16940235 is about 256.8264863598.

It can be divided in two parts, 169 and 40235, that added together give a palindrome (40404).

The spelling of 16940235 in words is "sixteen million, nine hundred forty thousand, two hundred thirty-five".