16211642 has 16 divisors (see below), whose sum is σ = 26868672. Its totient is φ = 7296960.

The previous prime is 16211641. The next prime is 16211651. The reversal of 16211642 is 24611261.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a zygodrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (16211641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9584 + ... + 11147.

It is an arithmetic number, because the mean of its divisors is an integer number (1679292).

Almost surely, 2^16211642 is an apocalyptic number.

16211642 is a deficient number, since it is larger than the sum of its proper divisors (10657030).

16211642 is a wasteful number, since it uses less digits than its factorization.

16211642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20773.

The product of its digits is 576, while the sum is 23.

The square root of 16211642 is about 4026.3683388384. The cubic root of 16211642 is about 253.0903976884.

The spelling of 16211642 in words is "sixteen million, two hundred eleven thousand, six hundred forty-two".