800814138 has 64 divisors (see below), whose sum is σ = 1780392960. Its totient is φ = 238844672.

The previous prime is 800814137. The next prime is 800814151. The reversal of 800814138 is 831418008.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 800814099 and 800814108.

It is not an unprimeable number, because it can be changed into a prime (800814137) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 418981 + ... + 420887.

It is an arithmetic number, because the mean of its divisors is an integer number (27818640).

Almost surely, 2^800814138 is an apocalyptic number.

800814138 is an abundant number, since it is smaller than the sum of its proper divisors (979578822).

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

800814138 is a wasteful number, since it uses less digits than its factorization.

800814138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2131.

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 800814138 is about 28298.6596502379. The cubic root of 800814138 is about 928.6325677794.

The spelling of 800814138 in words is "eight hundred million, eight hundred fourteen thousand, one hundred thirty-eight".