620342 has 16 divisors (see below), whose sum is σ = 976752. Its totient is φ = 295200.

The previous prime is 620329. The next prime is 620351. The reversal of 620342 is 243026.

It is a self number, because there is not a number n which added to its sum of digits gives 620342.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 620342.

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, 6092 + ... + 6192.

It is an arithmetic number, because the mean of its divisors is an integer number (61047).

2⁶²⁰³⁴² is an apocalyptic number.

620342 is a deficient number, since it is larger than the sum of its proper divisors (356410).

620342 is a wasteful number, since it uses less digits than its factorization.

620342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 620342 is about 787.6179276781. The cubic root of 620342 is about 85.2858656632.

Adding to 620342 its reverse (243026), we get a palindrome (863368).

The spelling of 620342 in words is "six hundred twenty thousand, three hundred forty-two".