5144778 has 72 divisors (see below), whose sum is σ = 12643488. Its totient is φ = 1507968.

The previous prime is 5144759. The next prime is 5144809. The reversal of 5144778 is 8774415.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 119625 + ... + 119667.

It is an arithmetic number, because the mean of its divisors is an integer number (175604).

Almost surely, 2^5144778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5144778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6321744).

5144778 is an abundant number, since it is smaller than the sum of its proper divisors (7498710).

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

5144778 is a wasteful number, since it uses less digits than its factorization.

5144778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 88 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 5144778 is about 2268.2103077096. The cubic root of 5144778 is about 172.6323621784.

The spelling of 5144778 in words is "five million, one hundred forty-four thousand, seven hundred seventy-eight".