5642045 has 8 divisors (see below), whose sum is σ = 7168824. Its totient is φ = 4248064.

The previous prime is 5642041. The next prime is 5642053. The reversal of 5642045 is 5402465.

It can be written as a sum of positive squares in 4 ways, for example, as 2617924 + 3024121 = 1618^2 + 1739^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5642045 - 2² = 5642041 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33104 + ... + 33273.

It is an arithmetic number, because the mean of its divisors is an integer number (896103).

Almost surely, 2^5642045 is an apocalyptic number.

It is an amenable number.

5642045 is a deficient number, since it is larger than the sum of its proper divisors (1526779).

5642045 is a wasteful number, since it uses less digits than its factorization.

5642045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66399.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 5642045 is about 2375.2989285562. The cubic root of 5642045 is about 178.0241203689.

It can be divided in two parts, 56420 and 45, that added together give a palindrome (56465).

The spelling of 5642045 in words is "five million, six hundred forty-two thousand, forty-five".