16261238 has 12 divisors (see below), whose sum is σ = 28374372. Its totient is φ = 6969060.

The previous prime is 16261237. The next prime is 16261243. The reversal of 16261238 is 83216261.

It is a super-2 number, since 2×16261238² = 528855722585288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16261238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16261237) 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 5 ways as a sum of consecutive naturals, for example, 82868 + ... + 83063.

It is an arithmetic number, because the mean of its divisors is an integer number (2364531).

Almost surely, 2^16261238 is an apocalyptic number.

16261238 is a deficient number, since it is larger than the sum of its proper divisors (12113134).

16261238 is a wasteful number, since it uses less digits than its factorization.

16261238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165947 (or 165940 counting only the distinct ones).

The product of its digits is 3456, while the sum is 29.

The square root of 16261238 is about 4032.5225355849. The cubic root of 16261238 is about 253.3482266560.

Adding to 16261238 its reverse (83216261), we get a palindrome (99477499).

The spelling of 16261238 in words is "sixteen million, two hundred sixty-one thousand, two hundred thirty-eight".