16261146 has 48 divisors (see below), whose sum is σ = 40704768. Its totient is φ = 4636800.

The previous prime is 16261139. The next prime is 16261151. The reversal of 16261146 is 64116261.

16261146 is a `hidden beast` number, since 1 + 6 + 2 + 611 + 46 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 951 + ... + 5781.

It is an arithmetic number, because the mean of its divisors is an integer number (848016).

Almost surely, 2^16261146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16261146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20352384).

16261146 is an abundant number, since it is smaller than the sum of its proper divisors (24443622).

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

16261146 is a wasteful number, since it uses less digits than its factorization.

16261146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4867 (or 4864 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 16261146 is about 4032.5111283169. The cubic root of 16261146 is about 253.3477488719.

It can be divided in two parts, 1626 and 1146, that added together give a palindrome (2772).

The spelling of 16261146 in words is "sixteen million, two hundred sixty-one thousand, one hundred forty-six".