620040212 has 72 divisors (see below), whose sum is σ = 1240063776. Its totient is φ = 268960000.

The previous prime is 620040151. The next prime is 620040227. The reversal of 620040212 is 212040026.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6138962 + ... + 6139062.

It is an arithmetic number, because the mean of its divisors is an integer number (17223108).

Almost surely, 2^620040212 is an apocalyptic number.

It is an amenable number.

620040212 is a deficient number, since it is larger than the sum of its proper divisors (620023564).

620040212 is a wasteful number, since it uses less digits than its factorization.

620040212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 620040212 is about 24900.6066592764. The cubic root of 620040212 is about 852.7203327945.

Adding to 620040212 its reverse (212040026), we get a palindrome (832080238).

The spelling of 620040212 in words is "six hundred twenty million, forty thousand, two hundred twelve".