4978720 has 72 divisors (see below), whose sum is σ = 12511044. Its totient is φ = 1870848.

The previous prime is 4978709. The next prime is 4978723. The reversal of 4978720 is 278794.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 3370896 + 1607824 = 1836^2 + 1268^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 4978720.

It is not an unprimeable number, because it can be changed into a prime (4978723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 134542 + ... + 134578.

Almost surely, 2^4978720 is an apocalyptic number.

4978720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4978720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6255522).

4978720 is an abundant number, since it is smaller than the sum of its proper divisors (7532324).

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

4978720 is a wasteful number, since it uses less digits than its factorization.

4978720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 4978720 is about 2231.3045511539. The cubic root of 4978720 is about 170.7546611116.

The spelling of 4978720 in words is "four million, nine hundred seventy-eight thousand, seven hundred twenty".