620503378 has 16 divisors (see below), whose sum is σ = 1048124160. Its totient is φ = 272948400.

The previous prime is 620503369. The next prime is 620503381. The reversal of 620503378 is 873305026.

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 7 ways as a sum of consecutive naturals, for example, 454233 + ... + 455596.

It is an arithmetic number, because the mean of its divisors is an integer number (65507760).

Almost surely, 2^620503378 is an apocalyptic number.

620503378 is a deficient number, since it is larger than the sum of its proper divisors (427620782).

620503378 is a wasteful number, since it uses less digits than its factorization.

620503378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909873.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 620503378 is about 24909.9052186073. The cubic root of 620503378 is about 852.9326054595.

The spelling of 620503378 in words is "six hundred twenty million, five hundred three thousand, three hundred seventy-eight".