670620020 has 24 divisors (see below), whose sum is σ = 1609488384. Its totient is φ = 229926816.

The previous prime is 670620011. The next prime is 670620037. The reversal of 670620020 is 20026076.

It is a happy number.

It is a super-2 number, since 2×670620020² = 899462422449600800, 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, 2394932 + ... + 2395211.

It is an arithmetic number, because the mean of its divisors is an integer number (67062016).

Almost surely, 2^670620020 is an apocalyptic number.

It is an amenable number.

670620020 is an abundant number, since it is smaller than the sum of its proper divisors (938868364).

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

670620020 is a wasteful number, since it uses less digits than its factorization.

670620020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4790159 (or 4790157 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 670620020 is about 25896.3321727228. The cubic root of 670620020 is about 875.3038487603.

Adding to 670620020 its reverse (20026076), we get a palindrome (690646096).

The spelling of 670620020 in words is "six hundred seventy million, six hundred twenty thousand, twenty".