424420649 has 2 divisors, whose sum is σ = 424420650. Its totient is φ = 424420648.

The previous prime is 424420631. The next prime is 424420663. The reversal of 424420649 is 946024424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 292170649 + 132250000 = 17093^2 + 11500^2 .

It is a cyclic number.

It is not a de Polignac number, because 424420649 - 2²⁴ = 407643433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (424420849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212210324 + 212210325.

It is an arithmetic number, because the mean of its divisors is an integer number (212210325).

Almost surely, 2^424420649 is an apocalyptic number.

It is an amenable number.

424420649 is a deficient number, since it is larger than the sum of its proper divisors (1).

424420649 is an equidigital number, since it uses as much as digits as its factorization.

424420649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 35.

The square root of 424420649 is about 20601.4720105142. The cubic root of 424420649 is about 751.5055086436.

The spelling of 424420649 in words is "four hundred twenty-four million, four hundred twenty thousand, six hundred forty-nine".