1283456674 has 8 divisors (see below), whose sum is σ = 1925442540. Its totient is φ = 641642496.

The previous prime is 1283456659. The next prime is 1283456693. The reversal of 1283456674 is 4766543821.

It can be written as a sum of positive squares in 2 ways, for example, as 1266292225 + 17164449 = 35585^2 + 4143^2 .

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

It is a super-2 number, since 2×1283456674² = 3294522068070284552, which contains 22 as substring.

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, 22239 + ... + 55330.

Almost surely, 2^1283456674 is an apocalyptic number.

1283456674 is a deficient number, since it is larger than the sum of its proper divisors (641985866).

1283456674 is an equidigital number, since it uses as much as digits as its factorization.

1283456674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85844.

The product of its digits is 967680, while the sum is 46.

The square root of 1283456674 is about 35825.3635571225. The cubic root of 1283456674 is about 1086.7435490579.

The spelling of 1283456674 in words is "one billion, two hundred eighty-three million, four hundred fifty-six thousand, six hundred seventy-four".