16220741 has 4 divisors (see below), whose sum is σ = 16228800. Its totient is φ = 16212684.

The previous prime is 16220713. The next prime is 16220759. The reversal of 16220741 is 14702261.

16220741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16220741 is a prime.

It is a super-2 number, since 2×16220741² = 526224877178162, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16220791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1850 + ... + 5988.

It is an arithmetic number, because the mean of its divisors is an integer number (4057200).

Almost surely, 2^16220741 is an apocalyptic number.

It is an amenable number.

16220741 is a deficient number, since it is larger than the sum of its proper divisors (8059).

16220741 is an equidigital number, since it uses as much as digits as its factorization.

16220741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8058.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 16220741 is about 4027.4981067655. The cubic root of 16220741 is about 253.1377389514.

It can be divided in two parts, 16220 and 741, that added together give a palindrome (16961).

The spelling of 16220741 in words is "sixteen million, two hundred twenty thousand, seven hundred forty-one".