2061900036 has 120 divisors (see below), whose sum is σ = 6326995136. Its totient is φ = 573168960.

The previous prime is 2061900031. The next prime is 2061900059. The reversal of 2061900036 is 6300091602.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2061899982 and 2061900009.

It is not an unprimeable number, because it can be changed into a prime (2061900031) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 71631 + ... + 96201.

Almost surely, 2^2061900036 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 2061900036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3163497568).

2061900036 is an abundant number, since it is smaller than the sum of its proper divisors (4265095100).

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

2061900036 is a wasteful number, since it uses less digits than its factorization.

2061900036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24631 (or 24620 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 2061900036 is about 45408.1494447858. The cubic root of 2061900036 is about 1272.7874040724.

Adding to 2061900036 its reverse (6300091602), we get a palindrome (8361991638).

The spelling of 2061900036 in words is "two billion, sixty-one million, nine hundred thousand, thirty-six".