1490606849 has 2 divisors, whose sum is σ = 1490606850. Its totient is φ = 1490606848.

The previous prime is 1490606807. The next prime is 1490606851. The reversal of 1490606849 is 9486060941.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1337218624 + 153388225 = 36568^2 + 12385^2 .

It is a cyclic number.

It is not a de Polignac number, because 1490606849 - 2²⁴ = 1473829633 is a prime.

It is a Sophie Germain prime.

Together with 1490606851, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1490608849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 745303424 + 745303425.

It is an arithmetic number, because the mean of its divisors is an integer number (745303425).

Almost surely, 2^1490606849 is an apocalyptic number.

It is an amenable number.

1490606849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1490606849 is an equidigital number, since it uses as much as digits as its factorization.

1490606849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 373248, while the sum is 47.

The square root of 1490606849 is about 38608.3779638565. The cubic root of 1490606849 is about 1142.3197988867.

The spelling of 1490606849 in words is "one billion, four hundred ninety million, six hundred six thousand, eight hundred forty-nine".