2086240636 has 6 divisors (see below), whose sum is σ = 3650921120. Its totient is φ = 1043120316.

The previous prime is 2086240633. The next prime is 2086240727. The reversal of 2086240636 is 6360426802.

It is a junction number, because it is equal to n+sod(n) for n = 2086240595 and 2086240604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2086240633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260780076 + ... + 260780083.

Almost surely, 2^2086240636 is an apocalyptic number.

It is an amenable number.

2086240636 is a deficient number, since it is larger than the sum of its proper divisors (1564680484).

2086240636 is a wasteful number, since it uses less digits than its factorization.

2086240636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521560163 (or 521560161 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 2086240636 is about 45675.3832605705. The cubic root of 2086240636 is about 1277.7762160995.

The spelling of 2086240636 in words is "two billion, eighty-six million, two hundred forty thousand, six hundred thirty-six".