4781730 has 32 divisors (see below), whose sum is σ = 12081600. Its totient is φ = 1207872.

The previous prime is 4781671. The next prime is 4781731. The reversal of 4781730 is 371874.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4781731) 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 15 ways as a sum of consecutive naturals, for example, 3625 + ... + 4764.

It is an arithmetic number, because the mean of its divisors is an integer number (377550).

Almost surely, 2^4781730 is an apocalyptic number.

4781730 is an abundant number, since it is smaller than the sum of its proper divisors (7299870).

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

4781730 is a wasteful number, since it uses less digits than its factorization.

4781730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8418.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 4781730 is about 2186.7167169069. The cubic root of 4781730 is about 168.4722399067.

The spelling of 4781730 in words is "four million, seven hundred eighty-one thousand, seven hundred thirty".