814288040 has 16 divisors (see below), whose sum is σ = 1832148180. Its totient is φ = 325715200.

The previous prime is 814288039. The next prime is 814288043. The reversal of 814288040 is 40882418.

It can be written as a sum of positive squares in 2 ways, for example, as 768509284 + 45778756 = 27722^2 + 6766^2 .

It is not an unprimeable number, because it can be changed into a prime (814288043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10178561 + ... + 10178640.

Almost surely, 2^814288040 is an apocalyptic number.

It is an amenable number.

814288040 is an abundant number, since it is smaller than the sum of its proper divisors (1017860140).

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

814288040 is a wasteful number, since it uses less digits than its factorization.

814288040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20357212 (or 20357208 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 35.

The square root of 814288040 is about 28535.7326872817. The cubic root of 814288040 is about 933.8117881344.

The spelling of 814288040 in words is "eight hundred fourteen million, two hundred eighty-eight thousand, forty".