4678520 has 128 divisors (see below), whose sum is σ = 13824000. Its totient is φ = 1411200.

The previous prime is 4678501. The next prime is 4678537. The reversal of 4678520 is 258764.

Added to its reverse (258764) it gives a square (4937284 = 2222²).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150905 + ... + 150935.

It is an arithmetic number, because the mean of its divisors is an integer number (108000).

Almost surely, 2^4678520 is an apocalyptic number.

4678520 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 4678520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6912000).

4678520 is an abundant number, since it is smaller than the sum of its proper divisors (9145480).

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

4678520 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 4678520 = (8720645)₉.

4678520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 4678520 is about 2162.9886731095. The cubic root of 4678520 is about 167.2512979508.

Adding to 4678520 its reverse (258764), we get a square (4937284 = 2222²).

The spelling of 4678520 in words is "four million, six hundred seventy-eight thousand, five hundred twenty".