408480749 has 2 divisors, whose sum is σ = 408480750. Its totient is φ = 408480748.

The previous prime is 408480727. The next prime is 408480841. The reversal of 408480749 is 947084804.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 274962724 + 133518025 = 16582^2 + 11555^2 .

It is a cyclic number.

It is not a de Polignac number, because 408480749 - 2⁸ = 408480493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (408410749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204240374 + 204240375.

It is an arithmetic number, because the mean of its divisors is an integer number (204240375).

Almost surely, 2^408480749 is an apocalyptic number.

It is an amenable number.

408480749 is a deficient number, since it is larger than the sum of its proper divisors (1).

408480749 is an equidigital number, since it uses as much as digits as its factorization.

408480749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 408480749 is about 20210.9066842633. The cubic root of 408480749 is about 741.9771506055.

The spelling of 408480749 in words is "four hundred eight million, four hundred eighty thousand, seven hundred forty-nine".