4520406 has 16 divisors (see below), whose sum is σ = 9862848. Its totient is φ = 1369800.

The previous prime is 4520393. The next prime is 4520407. The reversal of 4520406 is 6040254.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4520407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34180 + ... + 34311.

It is an arithmetic number, because the mean of its divisors is an integer number (616428).

Almost surely, 2^4520406 is an apocalyptic number.

4520406 is an abundant number, since it is smaller than the sum of its proper divisors (5342442).

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

4520406 is a wasteful number, since it uses less digits than its factorization.

4520406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68507.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 4520406 is about 2126.1246435710. The cubic root of 4520406 is about 165.3455385038.

The spelling of 4520406 in words is "four million, five hundred twenty thousand, four hundred six".