1283983449 has 32 divisors (see below), whose sum is σ = 2003205120. Its totient is φ = 716385600.

The previous prime is 1283983433. The next prime is 1283983489. The reversal of 1283983449 is 9443893821.

It is not a de Polignac number, because 1283983449 - 2⁴ = 1283983433 is a prime.

It is a super-3 number, since 3×1283983449³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1283983489) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174454 + ... + 181664.

It is an arithmetic number, because the mean of its divisors is an integer number (62600160).

Almost surely, 2^1283983449 is an apocalyptic number.

It is an amenable number.

1283983449 is a deficient number, since it is larger than the sum of its proper divisors (719221671).

1283983449 is a wasteful number, since it uses less digits than its factorization.

1283983449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7421.

The product of its digits is 1492992, while the sum is 51.

The square root of 1283983449 is about 35832.7147869095. The cubic root of 1283983449 is about 1086.8922077653.

The spelling of 1283983449 in words is "one billion, two hundred eighty-three million, nine hundred eighty-three thousand, four hundred forty-nine".