1450827989 has 12 divisors (see below), whose sum is σ = 1600666596. Its totient is φ = 1313949312.

The previous prime is 1450827977. The next prime is 1450828003. The reversal of 1450827989 is 9897280541.

It can be written as a sum of positive squares in 6 ways, for example, as 111999889 + 1338828100 = 10583^2 + 36590^2 .

It is not a de Polignac number, because 1450827989 - 2²⁰ = 1449779413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1450827989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1450827949) 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 in 11 ways as a sum of consecutive naturals, for example, 72032 + ... + 89945.

It is an arithmetic number, because the mean of its divisors is an integer number (133388883).

Almost surely, 2^1450827989 is an apocalyptic number.

It is an amenable number.

1450827989 is a deficient number, since it is larger than the sum of its proper divisors (149838607).

1450827989 is a wasteful number, since it uses less digits than its factorization.

1450827989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162056 (or 162043 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 53.

The square root of 1450827989 is about 38089.7360059111. The cubic root of 1450827989 is about 1132.0665941274.

The spelling of 1450827989 in words is "one billion, four hundred fifty million, eight hundred twenty-seven thousand, nine hundred eighty-nine".