620946380 has 12 divisors (see below), whose sum is σ = 1303987440. Its totient is φ = 248378544.

The previous prime is 620946379. The next prime is 620946449. The reversal of 620946380 is 83649026.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15523640 + ... + 15523679.

It is an arithmetic number, because the mean of its divisors is an integer number (108665620).

Almost surely, 2^620946380 is an apocalyptic number.

It is an amenable number.

620946380 is an abundant number, since it is smaller than the sum of its proper divisors (683041060).

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

620946380 is a wasteful number, since it uses less digits than its factorization.

620946380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31047328 (or 31047326 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 620946380 is about 24918.7957172894. The cubic root of 620946380 is about 853.1355379915.

The spelling of 620946380 in words is "six hundred twenty million, nine hundred forty-six thousand, three hundred eighty".