620101632 has 144 divisors (see below), whose sum is σ = 1761600960. Its totient is φ = 193462272.

The previous prime is 620101621. The next prime is 620101633. The reversal of 620101632 is 236101026.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 620101599 and 620101608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620101633) 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, 7471063 + ... + 7471145.

It is an arithmetic number, because the mean of its divisors is an integer number (12233340).

Almost surely, 2^620101632 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 620101632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (880800480).

620101632 is an abundant number, since it is smaller than the sum of its proper divisors (1141499328).

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

620101632 is an frugal number, since it uses more digits than its factorization.

620101632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 620101632 is about 24901.8399320211. The cubic root of 620101632 is about 852.7484881478.

Adding to 620101632 its reverse (236101026), we get a palindrome (856202658).

The spelling of 620101632 in words is "six hundred twenty million, one hundred one thousand, six hundred thirty-two".