620143000 has 64 divisors (see below), whose sum is σ = 1536537600. Its totient is φ = 233459200.

The previous prime is 620142961. The next prime is 620143009. The reversal of 620143000 is 341026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620143009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1240 + ... + 35239.

It is an arithmetic number, because the mean of its divisors is an integer number (24008400).

Almost surely, 2^620143000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620143000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (768268800).

620143000 is an abundant number, since it is smaller than the sum of its proper divisors (916394600).

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

620143000 is a wasteful number, since it uses less digits than its factorization.

620143000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36517 (or 36503 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 620143000 is about 24902.6705395225. The cubic root of 620143000 is about 852.7674504776.

Adding to 620143000 its reverse (341026), we get a palindrome (620484026).

The spelling of 620143000 in words is "six hundred twenty million, one hundred forty-three thousand".