814538650 has 12 divisors (see below), whose sum is σ = 1515041982. Its totient is φ = 325815440.

The previous prime is 814538603. The next prime is 814538651. The reversal of 814538650 is 56835418.

It can be written as a sum of positive squares in 3 ways, for example, as 418488849 + 396049801 = 20457^2 + 19901^2 .

It is not an unprimeable number, because it can be changed into a prime (814538651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8145337 + ... + 8145436.

Almost surely, 2^814538650 is an apocalyptic number.

814538650 is a deficient number, since it is larger than the sum of its proper divisors (700503332).

814538650 is a wasteful number, since it uses less digits than its factorization.

814538650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16290785 (or 16290780 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 40.

The square root of 814538650 is about 28540.1235105947. The cubic root of 814538650 is about 933.9075767485.

The spelling of 814538650 in words is "eight hundred fourteen million, five hundred thirty-eight thousand, six hundred fifty".