620242 has 12 divisors (see below), whose sum is σ = 1082430. Its totient is φ = 265776.

The previous prime is 620239. The next prime is 620251. The reversal of 620242 is 242026.

It can be written as a sum of positive squares in only one way, i.e., 461041 + 159201 = 679^2 + 399^2 .

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 5 ways as a sum of consecutive naturals, for example, 3067 + ... + 3262.

2⁶²⁰²⁴² is an apocalyptic number.

620242 is a deficient number, since it is larger than the sum of its proper divisors (462188).

620242 is a wasteful number, since it uses less digits than its factorization.

620242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6345 (or 6338 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 620242 is about 787.5544425625. The cubic root of 620242 is about 85.2812826832.

Adding to 620242 its reverse (242026), we get a palindrome (862268).

It can be divided in two parts, 62024 and 2, that added together give a palindrome (62026).

The spelling of 620242 in words is "six hundred twenty thousand, two hundred forty-two".