1600020620 has 48 divisors (see below), whose sum is σ = 3881128608. Its totient is φ = 547599360.

The previous prime is 1600020607. The next prime is 1600020649. The reversal of 1600020620 is 260200061.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210167 + ... + 217646.

It is an arithmetic number, because the mean of its divisors is an integer number (80856846).

Almost surely, 2^1600020620 is an apocalyptic number.

1600020620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1600020620 is an abundant number, since it is smaller than the sum of its proper divisors (2281107988).

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

1600020620 is a wasteful number, since it uses less digits than its factorization.

1600020620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427850 (or 427848 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1600020620 is about 40000.2577491696. The cubic root of 1600020620 is about 1169.6121197007.

Adding to 1600020620 its reverse (260200061), we get a palindrome (1860220681).

The spelling of 1600020620 in words is "one billion, six hundred million, twenty thousand, six hundred twenty".