1390004323 has 2 divisors, whose sum is σ = 1390004324. Its totient is φ = 1390004322.

The previous prime is 1390004321. The next prime is 1390004327. The reversal of 1390004323 is 3234000931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1390004323 - 2¹ = 1390004321 is a prime.

It is a super-2 number, since 2×1390004323² = 3864224035917376658, which contains 22 as substring.

Together with 1390004321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1390004321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695002161 + 695002162.

It is an arithmetic number, because the mean of its divisors is an integer number (695002162).

Almost surely, 2^1390004323 is an apocalyptic number.

1390004323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1390004323 is an equidigital number, since it uses as much as digits as its factorization.

1390004323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 1390004323 is about 37282.7617405149. The cubic root of 1390004323 is about 1116.0201868862.

The spelling of 1390004323 in words is "one billion, three hundred ninety million, four thousand, three hundred twenty-three".