1304442331 has 8 divisors (see below), whose sum is σ = 1312416000. Its totient is φ = 1296480960.

The previous prime is 1304442319. The next prime is 1304442343. The reversal of 1304442331 is 1332444031.

It is an interprime number because it is at equal distance from previous prime (1304442319) and next prime (1304442343).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1304442331 - 2⁵ = 1304442299 is a prime.

It is a super-2 number, since 2×1304442331² = 3403139589809427122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1304442296 and 1304442305.

It is not an unprimeable number, because it can be changed into a prime (1304442311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293655 + ... + 298063.

It is an arithmetic number, because the mean of its divisors is an integer number (164052000).

Almost surely, 2^1304442331 is an apocalyptic number.

1304442331 is a deficient number, since it is larger than the sum of its proper divisors (7973669).

1304442331 is a wasteful number, since it uses less digits than its factorization.

1304442331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6149.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1304442331 is about 36117.0642633091. The cubic root of 1304442331 is about 1092.6346308469.

Adding to 1304442331 its reverse (1332444031), we get a palindrome (2636886362).

The spelling of 1304442331 in words is "one billion, three hundred four million, four hundred forty-two thousand, three hundred thirty-one".