2140465636 has 6 divisors (see below), whose sum is σ = 3745814870. Its totient is φ = 1070232816.

The previous prime is 2140465573. The next prime is 2140465687. The reversal of 2140465636 is 6365640412.

It can be written as a sum of positive squares in only one way, i.e., 1327873600 + 812592036 = 36440^2 + 28506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2140465595 and 2140465604.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267558201 + ... + 267558208.

Almost surely, 2^2140465636 is an apocalyptic number.

It is an amenable number.

2140465636 is a deficient number, since it is larger than the sum of its proper divisors (1605349234).

2140465636 is a wasteful number, since it uses less digits than its factorization.

2140465636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535116413 (or 535116411 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 2140465636 is about 46265.1665510890. The cubic root of 2140465636 is about 1288.7522008578.

The spelling of 2140465636 in words is "two billion, one hundred forty million, four hundred sixty-five thousand, six hundred thirty-six".