604220420 has 24 divisors (see below), whose sum is σ = 1269895704. Its totient is φ = 241491456.

The previous prime is 604220401. The next prime is 604220429. The reversal of 604220420 is 24022406.

It can be written as a sum of positive squares in 4 ways, for example, as 84015556 + 520204864 = 9166^2 + 22808^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 604220392 and 604220401.

It is not an unprimeable number, because it can be changed into a prime (604220429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14294 + ... + 37586.

It is an arithmetic number, because the mean of its divisors is an integer number (52912321).

Almost surely, 2^604220420 is an apocalyptic number.

It is an amenable number.

604220420 is an abundant number, since it is smaller than the sum of its proper divisors (665675284).

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

604220420 is a wasteful number, since it uses less digits than its factorization.

604220420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24599 (or 24597 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 604220420 is about 24580.8954271402. The cubic root of 604220420 is about 845.4056243814.

Adding to 604220420 its reverse (24022406), we get a palindrome (628242826).

It can be divided in two parts, 6042 and 20420, that added together give a palindrome (26462).

The spelling of 604220420 in words is "six hundred four million, two hundred twenty thousand, four hundred twenty".