800148040 has 16 divisors (see below), whose sum is σ = 1800333180. Its totient is φ = 320059200.

The previous prime is 800148031. The next prime is 800148043. The reversal of 800148040 is 40841008.

It can be written as a sum of positive squares in 2 ways, for example, as 735602884 + 64545156 = 27122^2 + 8034^2 .

It is a junction number, because it is equal to n+sod(n) for n = 800147996 and 800148014.

It is not an unprimeable number, because it can be changed into a prime (800148043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10001811 + ... + 10001890.

Almost surely, 2^800148040 is an apocalyptic number.

It is an amenable number.

800148040 is an abundant number, since it is smaller than the sum of its proper divisors (1000185140).

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

800148040 is a wasteful number, since it uses less digits than its factorization.

800148040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20003712 (or 20003708 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 800148040 is about 28286.8881286012. Note that the first 3 decimals coincide. The cubic root of 800148040 is about 928.3750249251.

Adding to 800148040 its reverse (40841008), we get a palindrome (840989048).

The spelling of 800148040 in words is "eight hundred million, one hundred forty-eight thousand, forty".