800299538 has 4 divisors (see below), whose sum is σ = 1200449310. Its totient is φ = 400149768.

The previous prime is 800299537. The next prime is 800299601. The reversal of 800299538 is 835992008.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 415629769 + 384669769 = 20387^2 + 19613^2 .

It is not an unprimeable number, because it can be changed into a prime (800299537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200074883 + ... + 200074886.

Almost surely, 2^800299538 is an apocalyptic number.

800299538 is a deficient number, since it is larger than the sum of its proper divisors (400149772).

800299538 is a wasteful number, since it uses less digits than its factorization.

800299538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400149771.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 800299538 is about 28289.5658856759. The cubic root of 800299538 is about 928.4336132849.

It can be divided in two parts, 800 and 299538, that multiplied together give a square (239630400 = 15480²).

The spelling of 800299538 in words is "eight hundred million, two hundred ninety-nine thousand, five hundred thirty-eight".