620670220 has 24 divisors (see below), whose sum is σ = 1345454208. Its totient is φ = 240259200.

The previous prime is 620670217. The next prime is 620670229. The reversal of 620670220 is 22076026.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (620670229) 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, 499921 + ... + 501160.

It is an arithmetic number, because the mean of its divisors is an integer number (56060592).

Almost surely, 2^620670220 is an apocalyptic number.

It is an amenable number.

620670220 is an abundant number, since it is smaller than the sum of its proper divisors (724783988).

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

620670220 is a wasteful number, since it uses less digits than its factorization.

620670220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001121 (or 1001119 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 620670220 is about 24913.2539022906. The cubic root of 620670220 is about 853.0090445971.

The spelling of 620670220 in words is "six hundred twenty million, six hundred seventy thousand, two hundred twenty".