800249818 has 8 divisors (see below), whose sum is σ = 1202014548. Its totient is φ = 399578304.

The previous prime is 800249803. The next prime is 800249861. The reversal of 800249818 is 818942008.

It can be written as a sum of positive squares in 2 ways, for example, as 514064929 + 286184889 = 22673^2 + 16917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271471 + ... + 274402.

Almost surely, 2^800249818 is an apocalyptic number.

800249818 is a deficient number, since it is larger than the sum of its proper divisors (401764730).

800249818 is a wasteful number, since it uses less digits than its factorization.

800249818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546608.

The product of its (nonzero) digits is 36864, while the sum is 40.

The square root of 800249818 is about 28288.6871027978. The cubic root of 800249818 is about 928.4143860360.

The spelling of 800249818 in words is "eight hundred million, two hundred forty-nine thousand, eight hundred eighteen".