1004040231 has 4 divisors (see below), whose sum is σ = 1338720312. Its totient is φ = 669360152.

The previous prime is 1004040221. The next prime is 1004040263. The reversal of 1004040231 is 1320404001.

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 1004040231 - 2⁹ = 1004039719 is a prime.

It is a super-2 number, since 2×1004040231² = 2016193570933066722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1004040231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004040221) 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, 167340036 + ... + 167340041.

It is an arithmetic number, because the mean of its divisors is an integer number (334680078).

Almost surely, 2^1004040231 is an apocalyptic number.

1004040231 is a deficient number, since it is larger than the sum of its proper divisors (334680081).

1004040231 is an equidigital number, since it uses as much as digits as its factorization.

1004040231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334680080.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1004040231 is about 31686.5938687010. The cubic root of 1004040231 is about 1001.3449340083.

Adding to 1004040231 its reverse (1320404001), we get a palindrome (2324444232).

The spelling of 1004040231 in words is "one billion, four million, forty thousand, two hundred thirty-one".