6442040603 has 4 divisors (see below), whose sum is σ = 6547647888. Its totient is φ = 6336433320.

The previous prime is 6442040597. The next prime is 6442040641. The reversal of 6442040603 is 3060402446.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3060402446 = 2 ⋅1530201223.

It is a cyclic number.

It is not a de Polignac number, because 6442040603 - 2⁴ = 6442040587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6442040903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52803551 + ... + 52803672.

It is an arithmetic number, because the mean of its divisors is an integer number (1636911972).

Almost surely, 2^6442040603 is an apocalyptic number.

6442040603 is a deficient number, since it is larger than the sum of its proper divisors (105607285).

6442040603 is a wasteful number, since it uses less digits than its factorization.

6442040603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105607284.

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 6442040603 is about 80262.3236830332. The cubic root of 6442040603 is about 1860.6919808413.

The spelling of 6442040603 in words is "six billion, four hundred forty-two million, forty thousand, six hundred three".