609204020 has 24 divisors (see below), whose sum is σ = 1279902624. Its totient is φ = 243572256.

The previous prime is 609204019. The next prime is 609204047. The reversal of 609204020 is 20402906.

It is a super-2 number, since 2×609204020² = 742259075968320800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50627 + ... + 61493.

It is an arithmetic number, because the mean of its divisors is an integer number (53329276).

Almost surely, 2^609204020 is an apocalyptic number.

It is an amenable number.

609204020 is an abundant number, since it is smaller than the sum of its proper divisors (670698604).

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

609204020 is a wasteful number, since it uses less digits than its factorization.

609204020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13679 (or 13677 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 609204020 is about 24682.0586661648. The cubic root of 609204020 is about 847.7235604361.

Adding to 609204020 its reverse (20402906), we get a palindrome (629606926).

The spelling of 609204020 in words is "six hundred nine million, two hundred four thousand, twenty".