620142 has 8 divisors (see below), whose sum is σ = 1240296. Its totient is φ = 206712.

The previous prime is 620117. The next prime is 620159. The reversal of 620142 is 241026.

It is a sphenic number, since it is the product of 3 distinct primes.

620142 is an admirable number.

It is a super-2 number, since 2×620142² = 769152200328, which contains 22 as substring.

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 620142.

It is an unprimeable number.

620142 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51673 + ... + 51684.

It is an arithmetic number, because the mean of its divisors is an integer number (155037).

2⁶²⁰¹⁴² is an apocalyptic number.

620142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620142 is a wasteful number, since it uses less digits than its factorization.

620142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103362.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 620142 is about 787.4909523290. The cubic root of 620142 is about 85.2766992106.

Adding to 620142 its reverse (241026), we get a palindrome (861168).

The spelling of 620142 in words is "six hundred twenty thousand, one hundred forty-two".