620042 has 4 divisors (see below), whose sum is σ = 930066. Its totient is φ = 310020.

The previous prime is 620033. The next prime is 620051. The reversal of 620042 is 240026.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (620033) and next prime (620051).

It can be written as a sum of positive squares in only one way, i.e., 434281 + 185761 = 659^2 + 431^2 .

It is a junction number, because it is equal to n+sod(n) for n = 619999 and 620026.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155009 + ... + 155012.

2⁶²⁰⁰⁴² is an apocalyptic number.

620042 is a deficient number, since it is larger than the sum of its proper divisors (310024).

620042 is a wasteful number, since it uses less digits than its factorization.

620042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310023.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 620042 is about 787.4274569762. The cubic root of 620042 is about 85.2721152452.

Adding to 620042 its reverse (240026), we get a palindrome (860068).

The spelling of 620042 in words is "six hundred twenty thousand, forty-two".