4664520 has 128 divisors (see below), whose sum is σ = 17798400. Its totient is φ = 1064448.

The previous prime is 4664507. The next prime is 4664521. The reversal of 4664520 is 254664.

4664520 = 146² + 147² + ... + 257².

It is a happy number.

4664520 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (4664521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7252 + ... + 7868.

It is an arithmetic number, because the mean of its divisors is an integer number (139050).

Almost surely, 2^4664520 is an apocalyptic number.

4664520 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 4664520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8899200).

4664520 is an abundant number, since it is smaller than the sum of its proper divisors (13133880).

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

4664520 is a wasteful number, since it uses less digits than its factorization.

4664520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 4664520 is about 2159.7499855307. The cubic root of 4664520 is about 167.0843037128.

It can be divided in two parts, 46645 and 20, that added together give a triangular number (46665 = T₃₀₅).

The spelling of 4664520 in words is "four million, six hundred sixty-four thousand, five hundred twenty".