1040104399 has 2 divisors, whose sum is σ = 1040104400. Its totient is φ = 1040104398.

The previous prime is 1040104397. The next prime is 1040104531. The reversal of 1040104399 is 9934010401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1040104399 - 2¹ = 1040104397 is a prime.

Together with 1040104397, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1040104399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040104397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520052199 + 520052200.

It is an arithmetic number, because the mean of its divisors is an integer number (520052200).

Almost surely, 2^1040104399 is an apocalyptic number.

1040104399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040104399 is an equidigital number, since it uses as much as digits as its factorization.

1040104399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 1040104399 is about 32250.6495903571. The cubic root of 1040104399 is about 1013.1933042335.

The spelling of 1040104399 in words is "one billion, forty million, one hundred four thousand, three hundred ninety-nine".