7404139049 has 2 divisors, whose sum is σ = 7404139050. Its totient is φ = 7404139048.

The previous prime is 7404139033. The next prime is 7404139063. The reversal of 7404139049 is 9409314047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5397547024 + 2006592025 = 73468^2 + 44795^2 .

It is a cyclic number.

It is not a de Polignac number, because 7404139049 - 2⁴ = 7404139033 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7404138997 and 7404139015.

It is not a weakly prime, because it can be changed into another prime (7404139009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3702069524 + 3702069525.

It is an arithmetic number, because the mean of its divisors is an integer number (3702069525).

Almost surely, 2^7404139049 is an apocalyptic number.

It is an amenable number.

7404139049 is a deficient number, since it is larger than the sum of its proper divisors (1).

7404139049 is an equidigital number, since it uses as much as digits as its factorization.

7404139049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 7404139049 is about 86047.3070409528. The cubic root of 7404139049 is about 1949.0584144925.

The spelling of 7404139049 in words is "seven billion, four hundred four million, one hundred thirty-nine thousand, forty-nine".