620343120 has 160 divisors (see below), whose sum is σ = 2056368384. Its totient is φ = 154316800.

The previous prime is 620343029. The next prime is 620343137. The reversal of 620343120 is 21343026.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224950 + ... + 227690.

Almost surely, 2^620343120 is an apocalyptic number.

620343120 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620343120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1028184192).

620343120 is an abundant number, since it is smaller than the sum of its proper divisors (1436025264).

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

620343120 is a wasteful number, since it uses less digits than its factorization.

620343120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2821 (or 2815 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 620343120 is about 24906.6882583775. The cubic root of 620343120 is about 852.8591698975.

Adding to 620343120 its reverse (21343026), we get a palindrome (641686146).

The spelling of 620343120 in words is "six hundred twenty million, three hundred forty-three thousand, one hundred twenty".