1023927443449 has 3 divisors (see below), whose sum is σ = 1023928455343. Its totient is φ = 1023926431556.

The previous prime is 1023927443447. The next prime is 1023927443459. The reversal of 1023927443449 is 9443447293201.

It is a happy number.

The square root of 1023927443449 is 1011893.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 647260475625 + 376666967824 = 804525^2 + 613732^2 .

It is not a de Polignac number, because 1023927443449 - 2¹ = 1023927443447 is a prime.

It is a super-3 number, since 3×1023927443449³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023927443396 and 1023927443405.

It is not an unprimeable number, because it can be changed into a prime (1023927443443) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 505947 + ... + 1517839.

Almost surely, 2^{1023927443449} is an apocalyptic number.

1023927443449 is the 1011893-rd square number.

1023927443449 is the 505947-th centered octagonal number.

It is an amenable number.

1023927443449 is a deficient number, since it is larger than the sum of its proper divisors (1011894).

1023927443449 is an frugal number, since it uses more digits than its factorization.

1023927443449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023786 (or 1011893 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 1023927443449 in words is "one trillion, twenty-three billion, nine hundred twenty-seven million, four hundred forty-three thousand, four hundred forty-nine".