2061890236 has 12 divisors (see below), whose sum is σ = 4123780528. Its totient is φ = 883667232.

The previous prime is 2061890213. The next prime is 2061890249. The reversal of 2061890236 is 6320981602.

2061890236 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 2061890195 and 2061890204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36819441 + ... + 36819496.

Almost surely, 2^2061890236 is an apocalyptic number.

It is an amenable number.

2061890236 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2061890236 is a wasteful number, since it uses less digits than its factorization.

2061890236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73638948 (or 73638946 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 2061890236 is about 45408.0415345124. The cubic root of 2061890236 is about 1272.7853875931.

The spelling of 2061890236 in words is "two billion, sixty-one million, eight hundred ninety thousand, two hundred thirty-six".