604651220 has 24 divisors (see below), whose sum is σ = 1270348800. Its totient is φ = 241749792.

The previous prime is 604651141. The next prime is 604651237. The reversal of 604651220 is 22156406.

It is a self number, because there is not a number n which added to its sum of digits gives 604651220.

It is a congruent number.

It is an unprimeable number.

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, 48821 + ... + 59939.

It is an arithmetic number, because the mean of its divisors is an integer number (52931200).

Almost surely, 2^604651220 is an apocalyptic number.

It is an amenable number.

604651220 is an abundant number, since it is smaller than the sum of its proper divisors (665697580).

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

604651220 is a wasteful number, since it uses less digits than its factorization.

604651220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13847 (or 13845 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 604651220 is about 24589.6567686497. The cubic root of 604651220 is about 845.6064971141.

The spelling of 604651220 in words is "six hundred four million, six hundred fifty-one thousand, two hundred twenty".