620442122 has 16 divisors (see below), whose sum is σ = 986652672. Its totient is φ = 292098960.

The previous prime is 620442113. The next prime is 620442133. The reversal of 620442122 is 221244026.

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, 132938 + ... + 137525.

It is an arithmetic number, because the mean of its divisors is an integer number (61665792).

Almost surely, 2^620442122 is an apocalyptic number.

620442122 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

620442122 is a deficient number, since it is larger than the sum of its proper divisors (366210550).

620442122 is a wasteful number, since it uses less digits than its factorization.

620442122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270533.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 620442122 is about 24908.6756372152. The cubic root of 620442122 is about 852.9045374097.

Adding to 620442122 its reverse (221244026), we get a palindrome (841686148).

The spelling of 620442122 in words is "six hundred twenty million, four hundred forty-two thousand, one hundred twenty-two".