1620060100 has 36 divisors (see below), whose sum is σ = 3526035604. Its totient is φ = 646087680.

The previous prime is 1620060083. The next prime is 1620060109. The reversal of 1620060100 is 10600261.

It can be written as a sum of positive squares in 6 ways, for example, as 18939904 + 1601120196 = 4352^2 + 40014^2 .

It is a super-2 number, since 2×1620060100² = 5249189455224020000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1620060109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9664 + ... + 57736.

Almost surely, 2^1620060100 is an apocalyptic number.

1620060100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1620060100 is an abundant number, since it is smaller than the sum of its proper divisors (1905975504).

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

1620060100 is a wasteful number, since it uses less digits than its factorization.

1620060100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48424 (or 48417 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1620060100 is about 40249.9701863244. The cubic root of 1620060100 is about 1174.4748158467.

Adding to 1620060100 its reverse (10600261), we get a palindrome (1630660361).

The spelling of 1620060100 in words is "one billion, six hundred twenty million, sixty thousand, one hundred".