4402161 has 16 divisors (see below), whose sum is σ = 6662400. Its totient is φ = 2871504.

The previous prime is 4402159. The next prime is 4402169. The reversal of 4402161 is 1612044.

It is not a de Polignac number, because 4402161 - 2¹ = 4402159 is a prime.

4402161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4402169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 466 + ... + 3003.

It is an arithmetic number, because the mean of its divisors is an integer number (416400).

Almost surely, 2^4402161 is an apocalyptic number.

It is an amenable number.

4402161 is a deficient number, since it is larger than the sum of its proper divisors (2260239).

4402161 is a wasteful number, since it uses less digits than its factorization.

4402161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3525 (or 3519 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 4402161 is about 2098.1327412726. The cubic root of 4402161 is about 163.8910762941.

It can be divided in two parts, 440 and 2161, that added together give a square (2601 = 51²).

The spelling of 4402161 in words is "four million, four hundred two thousand, one hundred sixty-one".