3605442111 has 20 divisors (see below), whose sum is σ = 5389001200. Its totient is φ = 2402247456.

The previous prime is 3605442107. The next prime is 3605442143. The reversal of 3605442111 is 1112445063.

It is a happy number.

3605442111 is a `hidden beast` number, since 3 + 6 + 0 + 544 + 2 + 111 = 666.

It is not a de Polignac number, because 3605442111 - 2² = 3605442107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3605442811) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 140355 + ... + 164043.

It is an arithmetic number, because the mean of its divisors is an integer number (269450060).

Almost surely, 2^3605442111 is an apocalyptic number.

3605442111 is a deficient number, since it is larger than the sum of its proper divisors (1783559089).

3605442111 is a wasteful number, since it uses less digits than its factorization.

3605442111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25580 (or 25571 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 3605442111 is about 60045.3337987224. Note that the first 3 decimals coincide. The cubic root of 3605442111 is about 1533.3907613284.

Adding to 3605442111 its reverse (1112445063), we get a palindrome (4717887174).

The spelling of 3605442111 in words is "three billion, six hundred five million, four hundred forty-two thousand, one hundred eleven".