16441938 has 12 divisors (see below), whose sum is σ = 35624238. Its totient is φ = 5480640.

The previous prime is 16441921. The next prime is 16441939. The reversal of 16441938 is 83914461.

16441938 is a `hidden beast` number, since 1 + 644 + 1 + 9 + 3 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 16426809 + 15129 = 4053^2 + 123^2 .

It is a super-3 number, since 3×16441938³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (16441939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 456703 + ... + 456738.

Almost surely, 2^16441938 is an apocalyptic number.

16441938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16441938 is an abundant number, since it is smaller than the sum of its proper divisors (19182300).

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

16441938 is a wasteful number, since it uses less digits than its factorization.

16441938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913449 (or 913446 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 16441938 is about 4054.8659657256. The cubic root of 16441938 is about 254.2832003587.

The spelling of 16441938 in words is "sixteen million, four hundred forty-one thousand, nine hundred thirty-eight".