2042540045 has 32 divisors (see below), whose sum is σ = 3098231808. Its totient is φ = 1257907968.

The previous prime is 2042540041. The next prime is 2042540113. The reversal of 2042540045 is 5400452402.

It is a cyclic number.

It is not a de Polignac number, because 2042540045 - 2² = 2042540041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2042539996 and 2042540023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042540041) 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 31 ways as a sum of consecutive naturals, for example, 43829 + ... + 77498.

It is an arithmetic number, because the mean of its divisors is an integer number (96819744).

Almost surely, 2^2042540045 is an apocalyptic number.

It is an amenable number.

2042540045 is a deficient number, since it is larger than the sum of its proper divisors (1055691763).

2042540045 is a wasteful number, since it uses less digits than its factorization.

2042540045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121389.

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 2042540045 is about 45194.4691859524. The cubic root of 2042540045 is about 1268.7913035645.

Adding to 2042540045 its reverse (5400452402), we get a palindrome (7442992447).

The spelling of 2042540045 in words is "two billion, forty-two million, five hundred forty thousand, forty-five".