802440231 has 4 divisors (see below), whose sum is σ = 1069920312. Its totient is φ = 534960152.

The previous prime is 802440227. The next prime is 802440257. The reversal of 802440231 is 132044208.

802440231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 802440231 - 2² = 802440227 is a prime.

It is a super-2 number, since 2×802440231² = 1287820648654666722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802440211) 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, 133740036 + ... + 133740041.

It is an arithmetic number, because the mean of its divisors is an integer number (267480078).

Almost surely, 2^802440231 is an apocalyptic number.

802440231 is a deficient number, since it is larger than the sum of its proper divisors (267480081).

802440231 is a wasteful number, since it uses less digits than its factorization.

802440231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267480080.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 802440231 is about 28327.3759991991. The cubic root of 802440231 is about 929.2606877244.

Adding to 802440231 its reverse (132044208), we get a palindrome (934484439).

The spelling of 802440231 in words is "eight hundred two million, four hundred forty thousand, two hundred thirty-one".