1604442541 has 16 divisors (see below), whose sum is σ = 1888524288. Its totient is φ = 1348934400.

The previous prime is 1604442527. The next prime is 1604442569. The reversal of 1604442541 is 1452444061.

It is a cyclic number.

It is not a de Polignac number, because 1604442541 - 2¹⁵ = 1604409773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1604442241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110245 + ... + 123946.

It is an arithmetic number, because the mean of its divisors is an integer number (118032768).

Almost surely, 2^1604442541 is an apocalyptic number.

It is an amenable number.

1604442541 is a deficient number, since it is larger than the sum of its proper divisors (284081747).

1604442541 is a wasteful number, since it uses less digits than its factorization.

1604442541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234252.

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 1604442541 is about 40055.4932687141. The cubic root of 1604442541 is about 1170.6886006608.

It can be divided in two parts, 16044 and 42541, that added together give a palindrome (58585).

The spelling of 1604442541 in words is "one billion, six hundred four million, four hundred forty-two thousand, five hundred forty-one".