5142638 has 8 divisors (see below), whose sum is σ = 7723632. Its totient is φ = 2568096.

The previous prime is 5142637. The next prime is 5142647. The reversal of 5142638 is 8362415.

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

It is a self number, because there is not a number n which added to its sum of digits gives 5142638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5142637) 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 3 ways as a sum of consecutive naturals, for example, 2006 + ... + 3782.

It is an arithmetic number, because the mean of its divisors is an integer number (965454).

Almost surely, 2^5142638 is an apocalyptic number.

5142638 is a deficient number, since it is larger than the sum of its proper divisors (2580994).

5142638 is a wasteful number, since it uses less digits than its factorization.

5142638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3226.

The product of its digits is 5760, while the sum is 29.

The square root of 5142638 is about 2267.7385210822. The cubic root of 5142638 is about 172.6084230509.

The spelling of 5142638 in words is "five million, one hundred forty-two thousand, six hundred thirty-eight".