5138478 has 48 divisors (see below), whose sum is σ = 11771760. Its totient is φ = 1679616.

The previous prime is 5138477. The next prime is 5138479. The reversal of 5138478 is 8748315.

It is an interprime number because it is at equal distance from previous prime (5138477) and next prime (5138479).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5138477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47088 + ... + 47196.

It is an arithmetic number, because the mean of its divisors is an integer number (245245).

Almost surely, 2^5138478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5138478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5885880).

5138478 is an abundant number, since it is smaller than the sum of its proper divisors (6633282).

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

5138478 is a wasteful number, since it uses less digits than its factorization.

5138478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 211 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 5138478 is about 2266.8211221885. The cubic root of 5138478 is about 172.5618681671.

The spelling of 5138478 in words is "five million, one hundred thirty-eight thousand, four hundred seventy-eight".