5178426 has 32 divisors (see below), whose sum is σ = 11667456. Its totient is φ = 1518000.

The previous prime is 5178419. The next prime is 5178487. The reversal of 5178426 is 6248715.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 781 + ... + 3311.

It is an arithmetic number, because the mean of its divisors is an integer number (364608).

Almost surely, 2^5178426 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5178426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5833728).

5178426 is an abundant number, since it is smaller than the sum of its proper divisors (6489030).

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

5178426 is a wasteful number, since it uses less digits than its factorization.

5178426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578.

The product of its digits is 13440, while the sum is 33.

The square root of 5178426 is about 2275.6155211283. The cubic root of 5178426 is about 173.0078961057.

The spelling of 5178426 in words is "five million, one hundred seventy-eight thousand, four hundred twenty-six".