1449648291 has 48 divisors (see below), whose sum is σ = 2430044064. Its totient is φ = 761918976.

The previous prime is 1449648289. The next prime is 1449648311. The reversal of 1449648291 is 1928469441.

It is not a de Polignac number, because 1449648291 - 2¹ = 1449648289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1449648291.

It is not an unprimeable number, because it can be changed into a prime (1449649291) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 604591 + ... + 606983.

It is an arithmetic number, because the mean of its divisors is an integer number (50625918).

Almost surely, 2^1449648291 is an apocalyptic number.

1449648291 is a deficient number, since it is larger than the sum of its proper divisors (980395773).

1449648291 is a wasteful number, since it uses less digits than its factorization.

1449648291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740 (or 2733 counting only the distinct ones).

The product of its digits is 497664, while the sum is 48.

The square root of 1449648291 is about 38074.2470838229. The cubic root of 1449648291 is about 1131.7596754014.

The spelling of 1449648291 in words is "one billion, four hundred forty-nine million, six hundred forty-eight thousand, two hundred ninety-one".