620244143 has 8 divisors (see below), whose sum is σ = 636564096. Its totient is φ = 604135000.

The previous prime is 620244139. The next prime is 620244181. The reversal of 620244143 is 341442026.

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

It is a cyclic number.

It is not a de Polignac number, because 620244143 - 2² = 620244139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620241143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46733 + ... + 58518.

It is an arithmetic number, because the mean of its divisors is an integer number (79570512).

Almost surely, 2^620244143 is an apocalyptic number.

620244143 is a deficient number, since it is larger than the sum of its proper divisors (16319953).

620244143 is a wasteful number, since it uses less digits than its factorization.

620244143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105405.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 620244143 is about 24904.7012228615. The cubic root of 620244143 is about 852.8138090162.

Adding to 620244143 its reverse (341442026), we get a palindrome (961686169).

The spelling of 620244143 in words is "six hundred twenty million, two hundred forty-four thousand, one hundred forty-three".