1449220287 has 8 divisors (see below), whose sum is σ = 1968752304. Its totient is φ = 947917568.

The previous prime is 1449220273. The next prime is 1449220321. The reversal of 1449220287 is 7820229441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1449220287 - 2¹² = 1449216191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1449220217) 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 7 ways as a sum of consecutive naturals, for example, 4557138 + ... + 4557455.

It is an arithmetic number, because the mean of its divisors is an integer number (246094038).

Almost surely, 2^1449220287 is an apocalyptic number.

1449220287 is a deficient number, since it is larger than the sum of its proper divisors (519532017).

1449220287 is an equidigital number, since it uses as much as digits as its factorization.

1449220287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9114649.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 1449220287 is about 38068.6260193351. The cubic root of 1449220287 is about 1131.6482816353.

The spelling of 1449220287 in words is "one billion, four hundred forty-nine million, two hundred twenty thousand, two hundred eighty-seven".