620513738 has 16 divisors (see below), whose sum is σ = 1019360160. Its totient is φ = 281536176.

The previous prime is 620513713. The next prime is 620513809. The reversal of 620513738 is 837315026.

620513738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 620513698 and 620513707.

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, 200720 + ... + 203787.

It is an arithmetic number, because the mean of its divisors is an integer number (63710010).

Almost surely, 2^620513738 is an apocalyptic number.

620513738 is a deficient number, since it is larger than the sum of its proper divisors (398846422).

620513738 is a wasteful number, since it uses less digits than its factorization.

620513738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404581.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 620513738 is about 24910.1131671456. The cubic root of 620513738 is about 852.9373523219.

The spelling of 620513738 in words is "six hundred twenty million, five hundred thirteen thousand, seven hundred thirty-eight".