4780000 has 60 divisors (see below), whose sum is σ = 11808720. Its totient is φ = 1904000.

The previous prime is 4779997. The next prime is 4780007. The reversal of 4780000 is 874.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 4780000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4780007) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19881 + ... + 20119.

It is an arithmetic number, because the mean of its divisors is an integer number (196812).

Almost surely, 2^4780000 is an apocalyptic number.

4780000 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 4780000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5904360).

4780000 is an abundant number, since it is smaller than the sum of its proper divisors (7028720).

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

4780000 is an equidigital number, since it uses as much as digits as its factorization.

4780000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 4780000 is about 2186.3211109075. The cubic root of 4780000 is about 168.4519200551.

Adding to 4780000 its reverse (874), we get a palindrome (4780874).

The spelling of 4780000 in words is "four million, seven hundred eighty thousand".