803149818 has 32 divisors (see below), whose sum is σ = 1642947840. Its totient is φ = 261625920.

The previous prime is 803149801. The next prime is 803149847. The reversal of 803149818 is 818941308.

It is a self number, because there is not a number n which added to its sum of digits gives 803149818.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229788 + ... + 233256.

It is an arithmetic number, because the mean of its divisors is an integer number (51342120).

Almost surely, 2^803149818 is an apocalyptic number.

803149818 is an abundant number, since it is smaller than the sum of its proper divisors (839798022).

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

803149818 is a wasteful number, since it uses less digits than its factorization.

803149818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342.

The product of its (nonzero) digits is 55296, while the sum is 42.

The square root of 803149818 is about 28339.8979885249. The cubic root of 803149818 is about 929.5345178948.

The spelling of 803149818 in words is "eight hundred three million, one hundred forty-nine thousand, eight hundred eighteen".