410400649 has 2 divisors, whose sum is σ = 410400650. Its totient is φ = 410400648.

The previous prime is 410400647. The next prime is 410400691. The reversal of 410400649 is 946004014.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 328769424 + 81631225 = 18132^2 + 9035^2 .

It is a cyclic number.

It is not a de Polignac number, because 410400649 - 2¹ = 410400647 is a prime.

Together with 410400647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (410400647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205200324 + 205200325.

It is an arithmetic number, because the mean of its divisors is an integer number (205200325).

Almost surely, 2^410400649 is an apocalyptic number.

It is an amenable number.

410400649 is a deficient number, since it is larger than the sum of its proper divisors (1).

410400649 is an equidigital number, since it uses as much as digits as its factorization.

410400649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 410400649 is about 20258.3476374555. The cubic root of 410400649 is about 743.1377895064.

The spelling of 410400649 in words is "four hundred ten million, four hundred thousand, six hundred forty-nine".