814505802 has 64 divisors (see below), whose sum is σ = 1917281664. Its totient is φ = 227901440.

The previous prime is 814505773. The next prime is 814505807. The reversal of 814505802 is 208505418.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (814505807) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52618 + ... + 66314.

It is an arithmetic number, because the mean of its divisors is an integer number (29957526).

Almost surely, 2^814505802 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 814505802, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (958640832).

814505802 is an abundant number, since it is smaller than the sum of its proper divisors (1102775862).

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

814505802 is a wasteful number, since it uses less digits than its factorization.

814505802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13783.

The product of its (nonzero) digits is 12800, while the sum is 33.

The square root of 814505802 is about 28539.5480342629. The cubic root of 814505802 is about 933.8950226446.

The spelling of 814505802 in words is "eight hundred fourteen million, five hundred five thousand, eight hundred two".