1449981356 has 12 divisors (see below), whose sum is σ = 2546499480. Its totient is φ = 722410080.

The previous prime is 1449981311. The next prime is 1449981361. The reversal of 1449981356 is 6531899441.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 643886 + ... + 646133.

It is an arithmetic number, because the mean of its divisors is an integer number (212208290).

Almost surely, 2^1449981356 is an apocalyptic number.

It is an amenable number.

1449981356 is a deficient number, since it is larger than the sum of its proper divisors (1096518124).

1449981356 is a wasteful number, since it uses less digits than its factorization.

1449981356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290304 (or 1290302 counting only the distinct ones).

The product of its digits is 933120, while the sum is 50.

The square root of 1449981356 is about 38078.6207208192. The cubic root of 1449981356 is about 1131.8463448540.

The spelling of 1449981356 in words is "one billion, four hundred forty-nine million, nine hundred eighty-one thousand, three hundred fifty-six".