404734139 has 2 divisors, whose sum is σ = 404734140. Its totient is φ = 404734138.

The previous prime is 404734123. The next prime is 404734153. The reversal of 404734139 is 931437404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 404734139 - 2⁴ = 404734123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 404734099 and 404734108.

It is not a weakly prime, because it can be changed into another prime (404734639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202367069 + 202367070.

It is an arithmetic number, because the mean of its divisors is an integer number (202367070).

Almost surely, 2^404734139 is an apocalyptic number.

404734139 is a deficient number, since it is larger than the sum of its proper divisors (1).

404734139 is an equidigital number, since it uses as much as digits as its factorization.

404734139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 404734139 is about 20118.0053434728. The cubic root of 404734139 is about 739.7016931309.

The spelling of 404734139 in words is "four hundred four million, seven hundred thirty-four thousand, one hundred thirty-nine".