1449478481 has 6 divisors (see below), whose sum is σ = 1593228546. Its totient is φ = 1317707600.

The previous prime is 1449478447. The next prime is 1449478489. The reversal of 1449478481 is 1848749441.

It can be written as a sum of positive squares in only one way, i.e., 1342562881 + 106915600 = 36641^2 + 10340^2 .

It is not a de Polignac number, because 1449478481 - 2³⁰ = 375736657 is a prime.

It is a super-2 number, since 2×1449478481² = 4201975733764134722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1449478489) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5989460 + ... + 5989701.

It is an arithmetic number, because the mean of its divisors is an integer number (265538091).

Almost surely, 2^1449478481 is an apocalyptic number.

1449478481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1449478481 is a deficient number, since it is larger than the sum of its proper divisors (143750065).

1449478481 is a wasteful number, since it uses less digits than its factorization.

1449478481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11979183 (or 11979172 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 50.

The square root of 1449478481 is about 38072.0170335116. The cubic root of 1449478481 is about 1131.7154827017.

The spelling of 1449478481 in words is "one billion, four hundred forty-nine million, four hundred seventy-eight thousand, four hundred eighty-one".