1449358993 has 2 divisors, whose sum is σ = 1449358994. Its totient is φ = 1449358992.

The previous prime is 1449358991. The next prime is 1449359029. The reversal of 1449358993 is 3998539441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1050278464 + 399080529 = 32408^2 + 19977^2 .

It is a cyclic number.

It is not a de Polignac number, because 1449358993 - 2¹ = 1449358991 is a prime.

Together with 1449358991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1449358991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 724679496 + 724679497.

It is an arithmetic number, because the mean of its divisors is an integer number (724679497).

Almost surely, 2^1449358993 is an apocalyptic number.

It is an amenable number.

1449358993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1449358993 is an equidigital number, since it uses as much as digits as its factorization.

1449358993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4199040, while the sum is 55.

The square root of 1449358993 is about 38070.4477646376. The cubic root of 1449358993 is about 1131.6843841290.

The spelling of 1449358993 in words is "one billion, four hundred forty-nine million, three hundred fifty-eight thousand, nine hundred ninety-three".