620005722 has 48 divisors (see below), whose sum is σ = 1456017120. Its totient is φ = 175480032.

The previous prime is 620005697. The next prime is 620005723. The reversal of 620005722 is 227500026.

It is a junction number, because it is equal to n+sod(n) for n = 620005692 and 620005701.

It is not an unprimeable number, because it can be changed into a prime (620005723) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21604 + ... + 41312.

It is an arithmetic number, because the mean of its divisors is an integer number (30333690).

Almost surely, 2^620005722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620005722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (728008560).

620005722 is an abundant number, since it is smaller than the sum of its proper divisors (836011398).

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

620005722 is a wasteful number, since it uses less digits than its factorization.

620005722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19835 (or 19828 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 620005722 is about 24899.9140962374. The cubic root of 620005722 is about 852.7045215245.

Adding to 620005722 its reverse (227500026), we get a palindrome (847505748).

The spelling of 620005722 in words is "six hundred twenty million, five thousand, seven hundred twenty-two".