1449499969 has 4 divisors (see below), whose sum is σ = 1453226580. Its totient is φ = 1445773360.

The previous prime is 1449499967. The next prime is 1449499991. The reversal of 1449499969 is 9699949441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 411887025 + 1037612944 = 20295^2 + 32212^2 .

It is a cyclic number.

It is not a de Polignac number, because 1449499969 - 2¹ = 1449499967 is a prime.

It is a super-2 number, since 2×1449499969² = 4202100320262001922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1449499969.

It is not an unprimeable number, because it can be changed into a prime (1449499967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1862722 + ... + 1863499.

It is an arithmetic number, because the mean of its divisors is an integer number (363306645).

Almost surely, 2^1449499969 is an apocalyptic number.

It is an amenable number.

1449499969 is a deficient number, since it is larger than the sum of its proper divisors (3726611).

1449499969 is an equidigital number, since it uses as much as digits as its factorization.

1449499969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3726610.

The product of its digits is 22674816, while the sum is 64.

The square root of 1449499969 is about 38072.2992344828. The cubic root of 1449499969 is about 1131.7210750998.

The spelling of 1449499969 in words is "one billion, four hundred forty-nine million, four hundred ninety-nine thousand, nine hundred sixty-nine".