5240286638 has 4 divisors (see below), whose sum is σ = 7860429960. Its totient is φ = 2620143318.

The previous prime is 5240286619. The next prime is 5240286643. The reversal of 5240286638 is 8366820425.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1310071658 + ... + 1310071661.

It is an arithmetic number, because the mean of its divisors is an integer number (1965107490).

Almost surely, 2^5240286638 is an apocalyptic number.

5240286638 is a deficient number, since it is larger than the sum of its proper divisors (2620143322).

5240286638 is a wasteful number, since it uses less digits than its factorization.

5240286638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620143321.

The product of its (nonzero) digits is 552960, while the sum is 44.

The square root of 5240286638 is about 72389.8241329539. The cubic root of 5240286638 is about 1736.9407907138.

The spelling of 5240286638 in words is "five billion, two hundred forty million, two hundred eighty-six thousand, six hundred thirty-eight".