5642738208 has 48 divisors (see below), whose sum is σ = 16457988960. Its totient is φ = 1880912448.

The previous prime is 5642738207. The next prime is 5642738219. The reversal of 5642738208 is 8028372465.

5642738208 is a `hidden beast` number, since 564 + 2 + 7 + 3 + 82 + 0 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (5642738207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3264610 + ... + 3266337.

It is an arithmetic number, because the mean of its divisors is an integer number (342874770).

Almost surely, 2^5642738208 is an apocalyptic number.

It is an amenable number.

5642738208 is an abundant number, since it is smaller than the sum of its proper divisors (10815250752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5642738208 is a wasteful number, since it uses less digits than its factorization.

5642738208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6530966 (or 6530952 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 5642738208 is about 75118.1616388474. The cubic root of 5642738208 is about 1780.3141102866.

The spelling of 5642738208 in words is "five billion, six hundred forty-two million, seven hundred thirty-eight thousand, two hundred eight".